Question

EXERCISE 7(B)
watch w
1. The cost of kg of ghee is 296, find the cost of : 0) one kg ghee. ) kg ghen
2.) 3 m of cloth costs 168, find the cost of 4 m of the same cloth.
wist watch loses 10 sec in every 8 hours. In how much time will it loen
In how much time will it lose 15 sec ?
4. in 2 days and 20 hours a watch gains 20 sec. Find, how much time
take to gain 35 sec.
5. 50 men mow 32 hectares of land in 3 days. How many days will 15 men take to mow in
The wages of 10 workers for a six days week are * 1,200. What are the one day wa
0 of one worker ?
(ii) of 4 workers ?
If 32 apples weigh 2 kg 800 g, how many apples will there be in a box, containing
35 kg of apples ?
A truck uses 20 litres of diesel for 240 km. How many litres will be needed for 1200 km ?
A garrison of 1200 men has provisions for 15 days. How long will the provisions last if
the garrison be increased by 600 men ?
JA camp has provisions for 60 pupils for 18 days. In how many days, the same
provisions will finish off if the strength of the camp is increased to 72 pupils ?
TIME AND WORK
For solving problems on time and work, make the following simple facts clear :​

Answer 1

Answer:

let the total kg of ghee be 296

Step-by-step explanation:

then let one kg ghee be =1+1 =2

so 296/2 =147

Answer 2

Answer:

2) cost of 3m cloth =168

cost of 1m cloth =168/3=56

cost of 4m cloth =4 multiply by 58=232

3) wrist watch loses 10 sec in 8hr means 5 sec in 4hr so 15sec in 12hr