Number System What is the sum of all the prime numbers from 20 to 40? 117 118 119 120 117 118 119 120 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 23 + 29 + 31 + 37 = 120
Number System What is the least number that should be added to 5200 to make it a perfect square ? 288 275 225 129 288 275 225 129 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP We sec (73)² = 5329 and (72)² = 5184ie 5329 > 5200 > 5184So 129 should be added to make is perfect square.
Number System Find the least value of 3x + 4y if x2y3 = 6. 10 7 6 3 10 7 6 3 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 10
Number System What is the difference between the largest number and the least number written with the figures 3, 4, 7, 0, 3? 43983 43883 43893 70983 43983 43883 43893 70983 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 74330 Largest30347 Smallest-------------43983
Number System The population of a town increases by 15% in the first year and decreases by 25% in the second year. If its current population is 168480 then what will be its population after two years ? 145214 145314 145714 145914 145214 145314 145714 145914 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Population of the town= 168480 x 115/100 x 75/100= 145314
Number System Find the nearest to 25268 which is exactly divisible by 467? 25208 25308 25228 25218 25208 25308 25228 25218 ANSWER DOWNLOAD EXAMIANS APP
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