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OQN → O + 2 = Q, Q - 3 = N FHE → F + 2 = H, H - 3 = E MOI → M + 2 = O, O - 3 = L ≠ I YAX → Y + 2 = A, A - 3 = X RTQ → R + 2 = T, T - 3 = Q
Find the average of first 17 whole numbers.
The sum of the digits of a two-digit number is 7. If 45 is subtracted from this number, the resulting number has its digits reversed. Determine the orig...
If we add 1 to the numerator and subtract 1 from the denominator a fraction becomes 1. It becomes 1/4 if we only add 7 to the denominator what is the fr...
If (64)2 – (36)2 = 20Z, the value of z is
Find the average of first 11 whole numbers.
Find the unit digit of (57 129 - 7).
If x and y are the two digits of the number 115xy such that this number is divisible by 90, then the value of x + y is:
Find the number of zeros at the end of the following expression:
12 × 16 × 25 × 40 × 45
In an examination, the number of those who have passed and the number of those who failed were in the ratio of 40 : 7. If 7 more had appeared and the nu...
The difference between the value of the number increased by 20% and the value of the number decreased by 30% is 120. Find the number.