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**Q .5 5 marks each**

**A) A car is going with a speed of 80 km per hour. How
much time will it take to cover a distance of 720 km ?**

Answer: Cross Multiply:

80 km ============ 1 hour

720 km ============? hours

? x 80 = 720 x 1 Therefore ? = 720/80 = 9 hours

**B) In Meenkar Bank there are 10 fisherwomen.
Each of them saves Rs. 200 per month. Then together:**

**i) How much will they save in 1 month?**

Answer: Cross Multiply:

1 person saves ======== Rs. 200

10 fisherwomen saves =======?

? x 1 = 200 x 10 = 2000 Rs. per month they will save.

**ii) How much will they save in 1 year?**

Answer: Cross Multiply:

In 1 month they save ===== Rs;. 2000

Therefore in 12 months =========?

? x 1 = 2000 x 12 = 24000 Rs. they save in one year by 10 fisher women

**iii) How much will they save in 15 years?**

Answer: Cross Multiply:

1 year they save ==============Rs. 24000

15 years they save ==============? how much

? x 1 = 24000 x 15 = Rs. 3,60,000 i.e Three lacs and sixty thousand by 10 fisherwomen in 15 years.

**C) Find the least number which is divisible by the
numbers 6,9 and 12.**

Answer: Here you have to find LCM of 6,9,12.

2| 6 9 12

2| 3 9 6

3| 3 9 3

3 | 1 3 1

| 1 1 1

Therefore LCM is 2 x 2 x 3 x 3 = 24 is the Answer.

**D) How many half an hour are there in 5 hours?**

Ans: In 1 hour there are ======= 2 halfs

Therefore in 5 hours ==========? how many halfs

Cross Multiply: ? x 1 = 5 x 2 = 10 halfs

Answer is 10 halfs in 5 hours.

**E) Parvati had Rs. 650. She spend 3/5 of it on books.
How much money did she spend on books?**

Ans: Parvati spend Rs. 3.00 out of =========== 5 Rs.

Therefore ? how much she spend from=========Rs. 650

Cross Multiply: ? x 5 = 650x 3 = 1950/5 = Rs. 390 she spend on books.

**------------------------------------------PARTY TIME
EXAM IS OVER--------------------------------------------**