Number System What least number shall be added to 4700 to make it a perfect square ? 91 71 81 61 91 71 81 61 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (69)² = 4761 and (68)² = 4624Clerly 4624 < 4700 < 4761So 61 should be added to make 4700 a perfect square.
Number System What is the sum of all the composite numbers up to 20? 128 131 130 132 128 131 130 132 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4 + 6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132
Number System (95.6x 910.3) ÷ 92.56256 = 9? 12.24 13.34 15.54 14.44 12.24 13.34 15.54 14.44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 13.34
Number System The average age of seven boys sitting in a row facing North is 26 years. If the average age of first three boys is 19 years and the average age of last three boys is 32 years, what is the age of the b 30 years 28 years 29 years 31 years 30 years 28 years 29 years 31 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Age of the fourth boy = (26 x 7 - 3 x 19 - 3 x 32) years = (182 - 57 - 96) years = 29 years
Number System 384×12×2=? 8465 9216 7487 6123 8465 9216 7487 6123 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 9216
Number System Three numbers which are co-prime to one another are such that the product of the first two 551 and that of the last two is 1073. The sum of the three numbers is 93 74 110 85 93 74 110 85 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 85
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