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### Mathematical Skills | Percentage

 Q. No. 1: How much water must be added to 100cc of 80% solution of boric acid to reduce it to a 50% solution? A : 30 B : 40 C : 50 D : 60 Solution
 Q. No. 2: An inspector rejects 0.08% of the metres as defective. How many will he examine to reject 2? A : 200 B : 250 C : 2500 D : 3000 Solution
 Q. No. 3: After having spent 35% of the money on machinery, 40% on raw material and 10% on staff, a person is left with Rs 60,000.The total amount of money spent on machinery and raw material is A : Rs 1,76,000 B : Rs 3,00,000 C : Rs 1,70,000 D : Rs 3,40,000 Solution
 Q. No. 4: If 50% of the 2:3 solution of milk and water is replaced with water, then concentration of the solution is reduced by A : 25% B : 33.33% C : 50% D : 75% Solution
 Q. No. 5: Vishal goes to a shop to buy a radio costing Rs 2568. The rate of sales tax is 7%. He tells the shopkeeper to reduce the price of the radio to such an extent that he has to pay Rs 2568, inclusive of all sales tax. ind the reduction needed in the price of the radio. A : Rs 168 B : Rs 169 C : Rs 170 D : Rs 172 Solution
 Q. No. 6: Avi purchased an office bag with a price tag of Rs 600 in a sale where 25% discount was being offered on the tag price. He was given a further discount of 10% on the amount arrived at after giving usual 25% discount. What was the final amount paid by Avi? A : Rs 210 B : Rs 540 C : Rs 450 D : Rs 405 Solution
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