Number System In how many different ways can the letters of word 'BIOLOGY' be arranged ? 2410 2678 2520 2367 2410 2678 2520 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 Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 45 40 22 1/2 30 45 40 22 1/2 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System 64% of 2650+40% 0f 320=? 2096 1824 1247 1578 2096 1824 1247 1578 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System If 35% of a number is 899.5, what is 68% of that number ? 1747.6 2247.6 1547.6 1847.6 1747.6 2247.6 1547.6 1847.6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Suppose the number is x.Then 35% of x = 899.5∴ 68% of x = 68/35 x 899.5 = 1747.6
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 11849 14849 12849 13849 11849 14849 12849 13849 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 0.5 x ?/100 = 4.78 x 1255/100 + 3.24 x 440/100= 59.989 + 14.256∴ ? = 74.245 x 100/0.5 = 14849
Number System 35 + 15 * 1.5 = ? 5.25 57.5 51.5 75 5.25 57.5 51.5 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
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