Number System If (35)² is added to the square of a number the answer so obtained is 1394. What is the number ? 11 17 13 15 11 17 13 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x Therefore, x² + (35)² = 1394Therefore, x² = 1394 - (35)² = 1394 - 1225 = 169Therefore, x = √169 = 13
Number System (95.6x 910.3) ÷ 92.56256 = 9? 15.54 12.24 13.34 14.44 15.54 12.24 13.34 14.44 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 13.34
Number System 64% of 2650+40% 0f 320=? 1578 1824 1247 2096 1578 1824 1247 2096 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1824
Number System The sum of the present age of a father and a son is 60 years. Five years before, the age of the father was four times that of son. What is the present age of the son ? 25 years 15 years 18 years 21 years 25 years 15 years 18 years 21 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the father's age be x and son's age yTherefore, x + y = 60 ....................(i)Five years back, (x - 5) = 4 (y - 5)x - 4y = - 15 ......................(2)Solving (1) and (2), x = 45 and y = 15
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 9 11 10 8 9 11 10 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System A certain number when divided by 45 leaves a remainder 31, what is the remainder if the same number be divided by 15? 13 1 11 9 13 1 11 9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 45 + 31 = 76/15 = 1 (Remainder)
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