Number System If the numerator of a fraction is increased by 200% and the denominator by 300%, the fraction thus obtained is 1/36. What is the original fractions ? 3/9 4/9 5/9 6/9 3/9 4/9 5/9 6/9 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the fractions be x/yx + 200% of x/y + 300% of y = 1/3= x + 2x/y + 3y = 1/3= 3x/4y = 1/3Hence x/y = 4/9
Number System (12.04 x 7.5 + 0.8 x 45) ÷ 3 = ? 45 42.6 54.7 42.1 45 42.6 54.7 42.1 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP (90.3 + 36) ÷ 3 = 126.3/3 = 42.1
Number System Of an amount, 20% of 25% of 30% is Rs 75. Then what is the original amount ? Rs. 2000 Rs. 4000 Rs. 5000 Rs. 3000 Rs. 2000 Rs. 4000 Rs. 5000 Rs. 3000 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 In how many different ways can the letters of the word 'DETERMINE' be arranged ? 62480 61480 60480 63480 62480 61480 60480 63480 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP No. of arrangements = 9! / 3! Because, E comes 3 times = 60480
Number System Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is: 11 13 9 15 11 13 9 15 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let the three integers be x, x + 2 and x+ 4.Then,3x = 2(x + 4) + 3x = 11Third integer = x + 4 = 15.
Number System 35 + 15 * 1.5 = ? 5.25 57.5 51.5 75 5.25 57.5 51.5 75 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Given Exp. = 35 + 15 * 3/2 = 35 + 45/2 = 35 + 22.5 = 57.5
EXAMIANS