Number System The difference between 45% of a number and 18% of the same number is 145.8. What is 30% of that number ? 141 188 162 245 141 188 162 245 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.45% of x - 18% of x = 145.8∴ x/100 (45 - 18) = 145.8∴ x = 145.8 x 100/27 = 540∴ 30% of 540 = 540 x 30/100 = 162
Number System If one third of 3/4 of a number is 21. Then find the number? 840 63 630 84 840 63 630 84 ANSWER DOWNLOAD EXAMIANS APP
Number System A number exceeds by 25 from its 3/8 part. Then the number is? 32 35 39 40 32 35 39 40 ANSWER DOWNLOAD EXAMIANS APP
Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2520 2678 2410 2367 2520 2678 2410 2367 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP In BIOLOGY total 7 letters are there but O comes twice.∴ Number of arrangements = 7!/2! = 2520
Number System 2536+4851—?=3450+313 3624 4567 5243 6784 3624 4567 5243 6784 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3624
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