RS Aggarwal Class 6 Math Tenth Chapter Ratio, Proportion And Unitary Method Exercise 10C Solution

EXERCISE 10C

(1) If the cost of 14 m of cloth is Rs 1890, find the cost of 6 m of cloth.

(2) If the cost of a dozen soaps is Rs 2285.60, what will be the cost of 15 such soaps?

(3) If 9 kg of rice costs Rs 327.60, what will be the cost of 50 kg of rice?

(4) If 22.5 m of a uniform iron rod weighs 85.5 kg, what will be the weight of 5 m of the same rod?

(5) If 15 tins of the same size contain 234 kg of oil, how much oil will there be in 10 such tins?

(6) If 12 L of diesel is consumed by a car in covering a distance of 222 km, how many kilometers will it go in 22 L of diesel?

(7) A transport company charges Rs 540 to carry 25 tonnes of weight. What will it charge to carry 35 tonnes?

(8) 4.5 g of an alloy of copper and zinc contains 3.5 g of copper. What weight of copper will there be in 18.9g of the alloy?

(9) 35 inland letters cost Rs 87.50. How many such letters can we buy for Rs 315?

(10) Cost of 4 dozen bananas is Rs 104. How many bananas can be purchased for Rs 6.50?

(11) The cost of 18 chairs is Rs 22770. How many such chairs can be bought for Rs 10120?

(12) A car travels 195 km in 3 hours.

(i) How long will it take to travel 520 km?

(ii) How far will it travel in 7 hours with the same speed?

(13) A labourer earns Rs 1980 in 12 days.

(i) How much does he earn in 7 days?

(ii) In how many days will he earn Rs 2640?

(14) The weight of 65 books is 13 kg.

(i) What is the weight of 80 such books?

(ii) How many such books weigh 6.4 kg?

(15) If 48 boxes contain 6000 pens, how many such boxes will be needed for 1875 pens?

(16) 24 workers can build a wall in 15 days. How many days will 9 workers take to build a similar wall?

(17) 40 men can finish a piece of work in 26 days. How many men will be needed to finish it in 16 days?

(18) In an army camp, there were provisions for 550 men for 28 days. But, 700 men attended the camp. How long did the provisions last?

(19) A given quantity of rice is sufficient for 60 persons for 3 days. How many days would the rice last for 18 persons?