Number System A number consists of two digits. If 3/5 of 1/5 of the number is 9. Find the sum of its two digits? 12 7 8 60 12 7 8 60 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x * 3/5 * 1/5 = 9x = 75 => 7 + 5 = 12
Number System 4500 * ? = 3375 3/5 3/4 1/4 2/5 3/5 3/4 1/4 2/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4500 * x = 3375= x = 3375/4500 = 3/4
Number System If one third of 3/4 of a number is 21. Then find the number? 630 63 840 84 630 63 840 84 ANSWER DOWNLOAD EXAMIANS APP
Number System [(18.6 x 4.5) + (7.8 ÷ 0.24)] ÷ 3.2 = ? 26.3125 25.3125 46.3125 36.3125 26.3125 25.3125 46.3125 36.3125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 83.7 + 32.5/3.2 = 116.2/3.2 = 36.3125
Number System The sum of a number and its reciprocal is one-eighth of 34. What is the product of the number and its square root? 8 None of these 32 27 8 None of these 32 27 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,x + 1/x = 34/8 8x2 - 34x + 8 = 0 4x2 - 17x + 4 = 0 (4x - 1)(x - 4) = 0 x = 4required number = 4 * √4 = 4 * 2 = 8.
Number System Sum of two consecutive even terms lacks by 98 from their product. Find the sum of these number 32 None 24 18 32 None 24 18 ANSWER DOWNLOAD EXAMIANS APP
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