SOLUTION
250
Q. 153602
250
22
25
633
185
Solve: 135 ÷ 5
27
Find the missing digit
21 x __ = 105
5
Solve: 34 - 19
15
Find the missing digit.
33 + ____= 54
21
A large company is hosting a conference. So far, a total of 712 people have signed up, including 399 are men. Find the number of women.
Total number of signed up = 712
Number of men = 399
Number of women = total number of people - number of men
Hence the number of women is 313
A factory produced 547 kg of sugar on Monday, 111 kg sugar on Tuesday. Find the total quantity of sugar produced in these two days.
Quantity of sugar consumed on Monday = 547 kg
Quantity of sugar consumed on Tuesday = 111 kg
Total quantity = 547 + 111 = 658
Hence the total quantity of sugar is 658 kg
Christine and Robert are dairy farmers. Christine had 549 cows on his farm. Robert had 99 cows. How many cows do they have altogether?
Number of cows with Christine = 549
Number of cows with Robert = 99
Total number of cows = 648
Hence, the total number of cows is 648.
A baking company has 512 eggs, out of which 85 eggs were broken and 67 eggs were used to make the cakes. How many eggs are left?
Total number of eggs = 512
Number of eggs broken = 85
Number of eggs used = 67
Number of left = Total number of eggs – (number of broken eggs + Number of eggs used for making cake )
= 512 – 152 = 360 eggs
How many hours are equal to 360 minutes?
6 hours
Convert 13 weeks into days.
91 days
Convert 9 months into days.
270 days
Convert 13 days into hours.
312 hours
Convert 17 minutes into seconds.
1020 seconds
Convert 28 hours into minutes.
1680 minutes
Convert 12 minutes into seconds.
720 seconds
Convert 7 days into hours.
168 hours
How many hours are there in 2 days?
48 hours
Convert 10 hours into minutes.
600 minutes
It is 4:10 a.m. now. What will be the time after 30 minutes?
Time = 4:10 a.m.
Time after 30 minutes = 4 hours 10 minutes + 30 minutes
= 4 hours 40 minutes
How many minutes are there in 2 quarters?
1 quarter = 15 minutes
2 quarters = 2 x 15
= 30 minutes
If the minute hand at 9, how long will it take to complete an hour?
If the minute hand at 9,
Time covered = 45 minutes
One hour = 60 minutes
Time taken to complete an hour =
= 60 minutes - 45 minutes
= 15 minutes.
What is the total number of days in the last three consecutive months of the year?
Last three consecutive months of the year are
Number of days in October = 31
Number of days in November = 30
Number of days in December = 31
Total number of days = 31 + 30 + 31
= 92 days
It takes Rohan 2 hours and 30 minutes to complete his examination paper. How many minutes does he take in all?
Time taken by Rohan to complete the exam = 2 hours 30 minutes
1 hour = 60 minutes
2 hours = 2 x 60 = 120 minutes
2 hours 30 minutes = 120minutes + 30minutes = 150 minutes
a.Saturday
b.Monday
c.Saturday, Sunday and Monday
d.Monday
How many seconds are there in 26 minutes?
1 minute = 60 seconds
26 minutes = 26 x 60 seconds = 1560 seconds
How many minutes are there in 22 hours?
1 hour = 60 minutes
22 hours = 22 x 60 minutes
= 1320 minutes
Answer the following:
d.Class ended at = 2:50 pm
Duration of film show = 1 hour 30 minutes
Film show ended at =
e.Concert began at = 5 pm
Duration of concert = 3 hours
Concert ended = 5:00 pm
= 8:00 pm
Write the time shown in the given clocks.
a) 10 minutes past 3
b) quarter to 8
c) half past four
Answer the following questions:
a) 15 minutes past 10
b) 5 minutes to 8
a) 10:15
b) 07:55
What should be the position of two hands of the clock when time is 6:40?
Hour hand is between 6 and 7.
Minute hand is at 8.
What time it is, when hour hand is between
5 and 6 and the minute hand is at 7?
05:35
Draw the two hands in each of the following clock faces to show the given time.
How many times does the minute hand make a complete round of the clock face in 4 hours?
Time taken by minute hand in 1 hour = 1
Time taken by minute hand in 4 hours = 4 x 1
= 4 times
2:00
How long does the minute hand take to move from 7 to 8?
60 minutes
How many minutes are there in 7 hours?
7 hours = 7 x 60 minutes = 420 minutes
How many seconds are there in 2 minutes?
2 minutes = 2 x 60 seconds = 120 seconds
How many minutes are there in 4 hours?
4 hours = 4 x 60 minutes = 240 minutes
How long does the minute hand take to move from 3 to 5?
120 minutes
How long does the hour hand take to move from 2 to 3?
1 hour
Which hand indicates the time in an hour?
Hour hand
How many hands are there in a clock?
There are 2 hands in a clock. Minute hand and hour hand
How many seconds are there in 5 minutes?
5 minutes = 5 x 60 seconds = 300 seconds
How many minutes are there in 2 hours?
2 hours = 2 x 60 minutes = 120 minutes
How many hours are there in 2 days?
2 days = 2 x 24 hours = 48 hours
A table costs 
640. What will be the cost of 6 such tables?
Cost of 1 table = 640
Cost of 6 such tables = (640 X 6)
= 3840
Multiply 78 by 4 by using right hand distributive property.
Right hand distributive property:
(A + B) x C = A X C + B X C
78 X 4 = (70 + 8) X 4
= 70 X 4 + 8 X 4
= 280 + 32
= 312
Multiply 6 by 75 by using left hand distributive property.
Left hand distributive property:
A X (B + C) = A X B + A X C
6 X 75 = 6 X (70 + 5)
= 6 X 70 + 6 X 5
= 420 + 30
= 450
Multiply 9 by 46 by using left hand distributive property.
Left hand distributive property:
A X (B + C) = A X B + A X C
9 X 46 = 9 X (40 + 6)
= 9 X 40 + 9 x 6
= 360 + 54
= 414
Multiply 8 by 53 using box multiplication method.
Multiply 47 by 5 using box multiplication method.
Now, 200 + 35= 235
Find the product of 13 and 8.
104
Find the product of 7 and 6.
42
Find the product of 8 and 14.
112
Find the product of 5 and 15.
75
Find the product of 12 and 3?
36
Estimate the product of 523 and 281. (Round off to nearest 100)
523 rounded to the nearest hundred is 500
281 rounded to the nearest hundred is 300
Thus, 500 X 300 = 1, 50,000
Estimate the product of 88 and 29. (Round off to nearest 10)
88 rounded to the nearest ten is 90
29 rounded to the nearest ten is 30
Thus, 90 X 30 = 2,700
Estimate the product of 83 and 47. (Round off to nearest 10)
83 rounded to the nearest ten is 80
47 rounded to the nearest ten is 50
Thus, 80 X 50 = 4,000
There are 7 days in a week. How many days are there in 47 weeks?
Number of days in one week = 7
Number of days in 47 weeks = 47 X 7
= 329
30 people can travel in a bus. How many people can travel in 8 buses?
Number of people in one bus = 30
Number of people in 8 buses = 30 X 8
= 240
Thus, 240 people can travel in 8 buses.
Maria had 25 twenty rupees notes. How much money did she have in all?
Number of twenty rupees notes = 25
Money, Ritu had = (25 X 20) rupees
= 500 rupees
Thus, Ritu had 500 rupees in all.
38 injections of vaccinations were sent to 23 hospitals each. About how many total vaccination injections were sent out? (Round off to nearest 10)
There are 18 sections in a school. If there are 53 students in each section, estimate the total number of students in the school. (Round off to nearest 10)
There are 6 horses, 12 cows and 25 chickens in a farm. How many feet are there in total?
Number of feet of 6 horses = 6 X 4
= 24
Number of feet of 12 cows = 12 X 4
= 48
Number of feet of 25 chickens = 25 X 2
= 50
Total number of feet in a farm = 24 + 48 + 50
= 122
How many days are there from 12th September to 14th October?
Number of days from 12th September to 30th September = 19 days
Number of days from 1st October to 14th October = 14 days
Total number of days from 12th September to 14th October
= 19 days + 14 days
= 33 days
Yashika started making a painting at 2:30 p.m. and finished at 5:05 p.m. How long did she paint?
Yashika started making painting at = 2:30 p.m.
Yashika finished her painting at = 5:05 p.m.
Total time spent in painting = 2 hours and 35 minutes
How many days are there from 13th July to 27th July?
Number of days from 13th July to 27th July = 14 days
How many months are there in 2 and half years?
Number of months in 1 year = 12 months
Number of months in 2 years = 2 x 12 = 24 months
Number of months in ½ year = 12 ÷ 2 = 6 months
Total months = 24 months + 6 months
= 30 months
How many weeks are there in 4 months?
Number of weeks in 1 month = 4
Number of weeks in 4 months = 4 x 4 = 16 weeks
How many years are there in a Half century?
How many days are there in February in a leap year?
29 days
What time will be 1 hour 30 minutes after 9:10 p.m.?
10:40 p.m.
Find the time interval between 5:10 a.m. to 7:00 a.m.
1 hour 50 minutes
What time was 6 hours before 8:30 p.m.?
2:30 p.m.
If today is Friday, then what day will be tomorrow?
Saturday
If tomorrow will be Monday, then what day is today?
Sunday
What time will be 2 hours before 6:10 a.m.?
4:10 a.m.
What time will be 4 hours after 3:40 p.m.?
7:40 p.m.
If today is Thursday, then what day was yesterday?
Wednesday
Convert 23 hours into minutes.
1380 minutes
Convert 33 minutes into seconds.
1980 seconds
Convert 15 months into days.
450 days
Convert 21 weeks into days.
147 days
How many hours are equal to 4 days?
96 hours
576 flowers are kept in 8 flower pots. How many flowers are kept in each flower pot?
Identify the factors of 12.
12,4,3,6
Identify the number which is a multiple of 12.
45, 52, 72, 39, 42
72
List first five multiples of 45.
Multiples of 45 are 45, 90, 135, 180, 225.
1, 3, 5 and 15 are the factors of which number?
15
How many factors do the number 17 has?
Number 17 has 2 factors = 1, 17
Find the factors of 56.