Page 175 - Start Up Mathematics_8 (Non CCE)

12. Meenu requires 33% to pass. If she gets 155 marks and falls short by 10 marks, what are the maximum
marks?
13. Ravi loses 20% of his money. After spending 25% of the remainder, he has ` 540 left. How much
money did he originally have?
14. The price of coffee has been reduced by 8%. By how much percent must the new price be increased
to retain the original price?
15. Ashna spends 20% of her salary on food, 10% on cosmetics and donates 3% in an orphanage. In a
particular month, she spends ` 495 on these three things. What is her total salary for this month?
16. Rahul’s income is 15% less than that of Varun. How much percent is Varun’s income more than
that of Rahul’s?

MATHS LAB ACTIVITY

Compute the percentage of each amount. Then connect the dot beside each problem to the dot beside the
problem that has the same answer.

Problems Related to Thinking Skills

1. Amit keeps a spare tyre in his car. In order to use the five tyres efficiently, he changes the tyres
such that for a distance of 1,00,000 km, each tyre runs the same distance. What distance does each
tyre run?

2. I have a can of orange juice and a can of apple juice. I take 10 mL of the orange juice and put in
the can of apple juice. After stirring the solution, I take 10 mL of the solution from the can of apple
juice and put it in the can of orange juice. Now, is there more apple juice in the can of orange juice
or more orange juice in the can of apple juice?

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