Number System √9216 + √15376 = ? 227 224 231 220 227 224 231 220 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = √9216 + √15376= 96 + 124= 220
Number System Subtracting 30 from a number, the remainder is one fourth of the number. Find the number? 45 40 22 1/2 30 45 40 22 1/2 30 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 3/4 x = 30 => x = 40
Number System If the fractions8/5,7/2,9/5,5/4,4/5 are arranged in descending order of their values, which one will be fourth? 5/4 7/9 1/3 11/13 5/4 7/9 1/3 11/13 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 5/4
Number System The average of 7 numbers is 15, that of the first three is 6 and that of the last three is 23. What is the fourth number? 7 18 13 15 7 18 13 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 4th No. = (Total of 7 Nos) - (Total of first three + total of last 3) = (15 x 7) - (6 x 3 + 23 x 3) = 105 - (18 + 69) =105 - 87 = 18
Number System Find the number of factors of 300 excluding 1 and itself. 14 18 16 15 14 18 16 15 ANSWER DOWNLOAD EXAMIANS APP
Number System Radha's present age is three years less than twice her age 12 years ago. Also the respective ratio between Raj's present age and Radha's present age is 4 : 9. What will be Raj's age after 5 years ? 17 years 16 years 15 years 14 years 17 years 16 years 15 years 14 years ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let Radha's present age = x years.∴ x = 2 (x = 12) - 3= x = 2x - 24 - 3= x = 27∴ Raja's present age = 4/9 x 27= 12 years ∴ Raja's age after 5 years = 12 + 5 = 17 years
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