Number System (√6 + 1)² = ? + 2√6 7 8 5 6 7 8 5 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (√6 + 1)² - 2√6= (√6)² + 2 x √6 + 1 + 1² - 2√6= 6 + 2√6 + 1 - 2√6 = 6 + 1 = 7
Number System If the sum of the two numbers is 22 and the sum of their squares is 404, then the product of the numbers is: 44 40 88 80 44 40 88 80 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and y. Then, (x + y) = 22 and x2 + y2 = 404 Now, 2xy = (x + y)2 - (x2 + y2) 2xy= 222 - 404 = 484 - 404 = 80xy = 40
Number System On dividing number by 56, we get 29 as remainder. On dividing the same number by 8, what will be the remainder? 5 7 4 6 5 7 4 6 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let x be the number and y be the quotient. Then, x = 357 * y + 39= (17 * 21 * y) + (17 * 2) + 5= 17 * (21y + 2) + 5.Required remainder = 5.
Number System 7.8 x 4.5 x 4.2/0.14 = ? 1032 1087 1053 1012 1032 1087 1053 1012 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7.8 x 4.5 x 4.2/0.14 = 1053
Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 621.68 651.68 631.68 641.68 621.68 651.68 631.68 641.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
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.80 Rs.100 Rs.85 Rs.90 Rs.80 Rs.100 Rs.85 Rs.90 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9/12 = 3/4 * 900 = 675 650 ------------- 251/4 -------- 251 --------- ? => Rs.100
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