Number System ?125÷5x ?=6265 124 153 1253 1452 124 153 1253 1452 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 1253
Number System The difference between 72% of a number and 49% of the same number is 575. What is 9% of that number ? 275 245 225 295 275 245 225 295 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the no. be x.Therefore, 72% of x - 49% of x = 575Therefore, (72 - 49)% of x = 575Therefore, 9% of x = 575/23 x 9 = 225
Number System 732.96 + 405.38 - 604.08 - 105.44 + 222.86 = ? 651.68 621.68 631.68 641.68 651.68 621.68 631.68 641.68 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 1361.20 - 709.52 = 651.68
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 ? 15 years 25 years 21 years 18 years 15 years 25 years 21 years 18 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 4550 ÷ 25% of ? = 130 135 130 125 140 135 130 125 140 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4550 ÷ ? x 25/100 = 130= 4550 ÷ ?/4 = 130= 4550 x 4/? = 130= ? x 130 = 4550 x 4= ? = 4550 x 4/130 = 140
Number System {(742)² ÷ 36} ÷ 2 = ? 420.5 422.5 421.5 423.5 420.5 422.5 421.5 423.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
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