Number System 4/6 of 6/5 of 5/7 of a number is 96. Find the number. 168 164 170 162 168 164 170 162 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x x 4/6 x 6/5 x 5/7 = 96∴ x = 96 x 6 x 5 x 7/4 x 6 x 5 = 168
Number System The difference between a positive proper fraction and its reciprocal is 9/20. The fraction is: 5/4 3/10 4/5 3/5 5/4 3/10 4/5 3/5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1/x - x = 9/20 20x2 + 9x - 20 = 0 20x2 + 25x - 16x - 20 = 0 5x(4x + 5) -4(4x + 5) = 0(4x + 5)(5x - 4) = 0x = 4/5
Number System A man engaged a servant on the condition that he would pay him Rs.900 and a uniform after one year service. He served only for 9 months and received uniform and Rs.650, find the price of the uniform? Rs.100 Rs.80 Rs.90 Rs.85 Rs.100 Rs.80 Rs.90 Rs.85 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9/12 = 3/4 * 900 = 675 650 ------------- 251/4 -------- 251 --------- ? => Rs.100
Number System 7589 - ? = 3434 1123 11023 4155 4242 1123 11023 4155 4242 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let 7589 - x = 3434Then x = 7589 - 3434 = 4155
Number System 480% of 350 + 620% of 275 = ? 5385 4385 3385 2385 5385 4385 3385 2385 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 480 x 350/100 + 620 x 275/100= 1680 + 1705 = 3385
Number System [(18.6 x 4.5) + (7.8 ÷ 0.24)] ÷ 3.2 = ? 26.3125 25.3125 36.3125 46.3125 26.3125 25.3125 36.3125 46.3125 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 83.7 + 32.5/3.2 = 116.2/3.2 = 36.3125
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