Number System Twenty times a positive integer is less than its square by 96. What is the integer? 24 30 20 Cannot be determined 24 30 20 Cannot be determined ANSWER DOWNLOAD EXAMIANS APP
Number System A number when multiplied by five times of itself give the value equal to 1445. What is the number ? 18 17 16 15 18 17 16 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP x x 5x = 1445= 5x² = 1445= x² = 289∴ x = 17
Number System A man engaged a servant on the condition that he would pay him Rs.710 and a uniform after a year service. He served only for 8 months and got Rs.460 and a uniform. Find the price of the uniform? Rs.40 Rs.20 Rs.30 Rs.25 Rs.40 Rs.20 Rs.30 Rs.25 ANSWER DOWNLOAD EXAMIANS APP
Number System In a fraction, twice the numerator is two more than the denominator. If 3 is added to the numerator and the denominator each, then the resultant fraction will be 2/3 .What was the original fraction 17/12 19/12 11/12 7/12 17/12 19/12 11/12 7/12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 7/12
Number System What least number shall be added to 4700 to make it a perfect square ? 71 91 81 61 71 91 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 The sum of 8 consecutive odd numbers is 656. Also average of four consecutive even numbers is 87. What is the sum of the smallest odd number and second largest even number ? 158 160 167 163 158 160 167 163 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Average of 8 consecutive odd numbers = 656/8 = 82∴ Fourth number = 82 - 1 = 81∴ First numbers = 75Average of 4 even numbers = 87∴ Second even number = 87 - 1 = 86Second largest even number = 88∴ Required sum = 75 + 88 = 163
EXAMIANS