A. x = 4, y = 8
B. x = 4, y = 4
C. x = 2, y = 4
D. x = 8, y = 4
Explanation:
3 1/x * y 2/5 = 13¾
=> (3x + 1) / x + (5y + 1) / 2 += 55 / 4
only choice (4) i.e x = 8 and y = 4 satisfies the given equation.
3 (1/8) * 4 (2/5) = (25 / 8 ) * (22 / 5) = 55/4 = 13¾
Related Mcqs:
- The average of four positive integers is 69. The highest integer is 93 and the least integer is 39. The difference between the remaining two integers is 28. Which of the following integers is the higher of the remaining two integers?
A. 58
B. 86
C. 49
D. None of these - Three consecutive odd integers are in increasing order such that the sum of the last two integers is 13 more than the first integer. Find the three integers?
A. 9, 11, 13
B. 11, 13, 15
C. 13, 15, 17
D. 7, 9, 11
E. None of these - The sum of the squares of two consecutive positive integers exceeds their product by 91. Find the integers?
A. 9, 10
B. 10, 11
C. 11, 12
D. 12, 13 - The sum of five consecutive even numbers of set x is 440. Find the sum of a different set of five consecutive integers whose second least number is 121 less than double the least number of set x?
A. 248
B. 240
C. 228
D. 236
E. None of these - Which of the following groups of fractions is in descending order?
A. 8/15, 9/13, 6/11
B. 8/15, 6/11, 9/13
C. 9/13, 6/11, 8/15
D. 6/11, 8/15, 9/13 - Which of the following fractions is the largest?
A. 7/8
B. 13/16
C. 31/40
D. 63/80 - The average of five consecutive odd numbers is 61. What is the difference between the highest and lowest numbers?
A. 2
B. 5
C. 8
D. Cannot be determined - Find the lowest 4-digit number which when divided by 3, 4 or 5 leaves a remainder of 2 in each case?
A. 1020
B. 1026
C. 1030
D. 1022 - Find the lowest common multiple of 24, 36 and 40.
A. 120
B. 240
C. 360
D. 480 - If two positive numbers are in the ratio 1/8 : 1/5, then by what percent is the second number more than the first?
A. 40%
B. 33 1/3%
C. 60%
D. 66 2/3%
E. None of these