Number System What is the value of ? in the following equations ? 72/? = ?/50 100 60 80 40 100 60 80 40 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (?)² = 72 x 50= (6 x 6 x 2) x (5 x 5 x 2)= (6 x 5 x 2)² = (60)²∴ ? = 60
Number System A trader sells 40 metres of cloth for Rs 8,200 at a profit of Rs 25 per metre of cloth. How much profit will the trader earn on 40 metres of cloth ? Rs. 600 Rs. 1,200 Rs. 800 Rs. 1,000 Rs. 600 Rs. 1,200 Rs. 800 Rs. 1,000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP S.P. per metre = 8200/40 = Rs. 205∴ C.P. per metre = Rs. (205 - 25) = Rs. 180∴ C.P. of 40 metre cloth= Rs. (40 x 180) = Rs. 7200∴ Gain = Rs. (8200 - 7200) = Rs. 1000
Number System If R2 = S3 = K, where R, S and K are integers. Find the smallest positive integral value of K. (Greater than 1) 64 88 75 54 64 88 75 54 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 64
Number System How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together? 10 11 9 8 10 11 9 8 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (700 – 300)/42 = 9 22/42 => 9 Numbers
Number System (4 86%of 6500) ÷ 36 =? 777.5 877.5 977.5 677.5 777.5 877.5 977.5 677.5 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 877.5
Number System What should come in the place of question mark (?) in the number series given below? 157 160 159 158 157 160 159 158 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP 160
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