Number System Two third of three- fifth of one fourth of a number is 24, what is 30% of that number? 72 90 69 42 72 90 69 42 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 2/3 * 3/5 * 1/4 = 24x = 240240 * 30/100 = 72
Number System 4.78% of 1255 + 3.24% of 440=0.5% of ? 13849 11849 12849 14849 13849 11849 12849 14849 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 If 5/7 of a number is 145, what is 180% of that number ? 375.4 345.4 365.4 355.4 375.4 345.4 365.4 355.4 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 5/7 = 145∴ x = 145 x 7/5 = 203Now, 203 x 180/100 = 365.4
Number System What is the sum of all the composite numbers up to 20? 131 132 128 130 131 132 128 130 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132
Number System Complete the series : 81, 69, 58, 48, 39 ........ 31 28 30 29 31 28 30 29 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 31
Number System In how many different ways can the letters of the word 'DETERMINE' be arranged ? 61480 60480 63480 62480 61480 60480 63480 62480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
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