Number System 7.98 x 3.75 + 1.28 x 15.5 = ? 49.765 46.765 47.765 48.765 49.765 46.765 47.765 48.765 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 29.925 + 19.84 = 49.765
Number System A shopkeeper purchased 200 bulbs for Rs. 10 each. However, 5 bulbs were fused and had to be thrown away. The remaining were sold at Rs. 12 each. What will be percentage profit? 14 17 21 33 14 17 21 33 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 12
Number System √360 - 225 x 2 + 379 = ? 18 17 19 20 18 17 19 20 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √360 - 225 x 2 + 379 = √360 - 450 + 379 = √289= 17
Number System The sum of the digits of a two-digit number is 12, and the difference between the number and the number obtained by interchanging the two digits of the number is 18. Find the number. 25 50 12.5 75 25 50 12.5 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be 10x + y.∴ x + y = 12 ...........(i)10x + y - (10x + x) = 18or 10x + y - 10y - x = 18or 9x - 9y = 18∴ x - y = 2From (i) and (ii), x = 7, y = 5∴ Number = 75
Number System The difference between the two digit number and the number obtained by interchanging its digits is 54. The difference between the digits is? 1 6 4 Nothing can be said. 1 6 4 Nothing can be said. ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (10x + y) – (10y + x) = 54x – y = 6
Number System Four-fifth of a number is 10 more than two-third of the same number. What is the number? 89 35 75 91 89 35 75 91 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 75
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