Number System 68375 + 72848 - ? = 34346 + 49569 None of these 57308 59308 58308 None of these 57308 59308 58308 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP ? = 68375 + 72848 - 34346 - 49569 = 141223 - 83915 = 57308
Number System (3² x 4² x 5) ÷ 36 = (?)² - 80 14 10 16 12 14 10 16 12 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 3² x 4² x 5/36 + 80= 20 + 80 = 100∴ ? = √100 = 10
Number System Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? Rs. 5000 Rs. 4000 Rs. 3000 Rs. 2000 Rs. 5000 Rs. 4000 Rs. 3000 Rs. 2000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the amount be x.∴ X x 20/100 x 25/100 x 30/100 = 75∴ X = 75 x 5 x 4 x 10/3 = 5000
Number System The difference between 8% of a number and 3% of the same number is 39. What is 2.8% of that number ? 27.84 25.84 21.84 24.84 27.84 25.84 21.84 24.84 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x.∴ x(8 - 3)% = 39x = 3900/5 = 780∴ 2.8% of 780= 780 x 2.8/100 = 21.84
Number System How many times the keys of a typewriter have to be pressed in order to write first 400 counting numbers? 1200 1192 1082 1092 1200 1192 1082 1092 ANSWER DOWNLOAD EXAMIANS APP
Number System A number is doubled and 9 is added. If the resultant is trebled, it becomes 75. What is that number? None of these 8 6 3.5 None of these 8 6 3.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the number be x. Then,3(2x + 9) = 752x = 16 => x = 8
EXAMIANS