Page 238 - Start Up Mathematics_6

5. Anish made 42 runs in 6 overs and Anup made 63 runs in 7 overs. Who made more runs per
over?

6. Divide ` 1,800 among three persons in the ratio 1 : 4 : 5.
7. The total strength of a school is 1,120. The ratio of boys and girls in the school is 4 : 3. Find
the number of boys and number of girls in the school.
8. In a sports academy, 36 cricket players and 24 football players are getting training. Find the
following ratio in the simplest form:
(a) Football players to cricket players (b) Cricket players to football players

(c) Football players to all players (d) Cricket players to all players
9. Mr. Paramjeet gets ` 24,000 per month. He spends ` 20,000 and saves the rest. Find the
following ratio in the simplest form:
(a) His income to expenditure (b) His expenditure to savings

(c) His savings to income (d) His earnings to savings

Thinking Skills

p p
1. If q = r , what must be true?

2. Nikhil is earning 5 times as much as Vani, what is the ratio of Vani’s earning to that of Nikhil’s?
3 1
3. If Sam spends 4 of his salary and Tony spends 2 of his salary, is it necessary that Sam’s

expenditure is more than Tony’s?
4. The cost of 15 pens is ` 60. How many pens can be purchased for ` 156?
5. Divide ` 1,800 amongst Ashraf, Bholanath and Chameli in the ratio 2 : 3 : 5.

6. Bhim Singh, a wrestler, weighs 84 kg on the earth and 14 kg on the moon. Find Spooky’s
weight on the moon if he weighs 9 kg on the earth.
7. The ratio of boys to girls in Section A of Class VI is 2 : 3. The ratio of boys to girls in Section
B of Class VI is also the same. If there are 18 boys in VI B, how many girls are there in
VI B? Find the number of girls in VI A.
8. If 3 men can do some construction work in 8 days, how long will 4 men take to complete the
same work with the same ability?

[Hint: 1 man will take more time to complete the work as compared to 3 men.]
Values and Life Skills

1. An electric pole casts a shadow of length 10 m at a particular time when a tree 8 m high
casts a shadow of length 6 m. Find the height of the pole. Why is it advisable to maintain
distance from an electric pole?
2. The cost of 5 dozen oranges is ` 160. What is the cost of 12 dozen oranges? Which vitamin
will you get by eating oranges?
3. 12 workers can construct a wall in 15 days. In how many days can 18 workers construct a
similar wall? What will you do if you see a child working on a construction site? Is child
labour legal?

230