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 (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 54.7 42.1 42.6 45 54.7 42.1 42.6 45 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System 3√103820 x 3√274620 = ? 3035 3045 3065 3055 3035 3045 3065 3055 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3√103820 = 47 and 3√274620 = 65 ∴ ? = 47 x 65 = 3055
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 275 295 245 225 275 295 245 225 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System Which number should replace question mark (?) in the following equation ? ?/342 = 38/? 116 112 118 114 116 112 118 114 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 342 x 38Therefore, ? = √342 x 38 = √38 x 9 x 38 = 38 x 3 = 114
Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 60480 61480 63480 62480 60480 61480 63480 62480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
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