Number System The sum of two numbers is 22. Five times one number is equal to 6 times the other. The bigger of the two numbers is: 10 12 16 15 10 12 16 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the numbers be x and (22 - x). Then,5x = 6(22 - x) 11x = 132 => x = 12So, the numbers are 12 and 10.
Number System Twenty times a positive integer is less than its square by 96. What is the integer? Cannot be determined 20 30 24 Cannot be determined 20 30 24 ANSWER DOWNLOAD EXAMIANS APP
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1192 1082 1092 1200 1192 1082 1092 1200 ANSWER DOWNLOAD EXAMIANS APP
Number System {(742)² ÷ 36} ÷ 2 = ? 420.5 423.5 422.5 421.5 420.5 423.5 422.5 421.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = (174 x 174/36) ÷ 2 = 841/2 = 420.5
Number System The difference between 78% of a number and 59% of the same number is 323. What is 62% of that number ? Rs. 945 Rs. 986 Rs. 926 Rs. 1054 Rs. 945 Rs. 986 Rs. 926 Rs. 1054 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.78% of x - 59% of x = 323= 78x - 59x/100 = 323= 19x/100 = 323∴ x = 323 x 100/19 = 1700= 62% of 1700 = 1700 x 62/100 = 1054
Number System Ratio between two numbers is 3: 4 and their sum is 420. Find the smaller number? 180 140 160 240 180 140 160 240 ANSWER DOWNLOAD EXAMIANS APP
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