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=> x3 + y3 + z3 – 3xyz = (x+y+z) (x+y+z)2 – 3(xy +yz + zx) => 36 – 18 = 6 (36 – 3(xy +yz + zx)) => 3 = 36 – 3(xy +yz + zx) => xy +yz + zx = 11
Find the sum of all two-digit numbers that are exactly divisible by 5.
The sum of a positive number 'A' and its square is 240. Find the value of (A2 - 7A).
Two friends received a bonus of ₹3,000 each in their bank accounts. They already have ₹47,000 and ₹57,000 in their respective bank accounts. The r...
Two numbers P and Q are in the respective ratio 7: 9 and their sum is 80. Then, P is equal to:
Find the maximum number of trees which can be planted, 25 meters apart, on the two sides of a straight road 2125 meters long?
A = (5/2) × B and C = (1/10) × A. If (A + B + C) = 255, then determine the value of (7C – B).
How much greater than 30 is the result when twice the sum of the first five prime numbers is subtracted from the largest two-digit prime number?
