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ATQ,
Total number of balls in the basket = 4 + 10 + 6 = 20
Number of green balls = 10
Probability that both balls are green = ¹⁰C₂/²⁰C₂ = 45/190 = 9/38
Find the unit digit of (62375 - 7).
Find the unit digit of (57 129 - 7).
180 is divided into two parts in such a way that the fifth part of the first part and the fourth part of the second are in the ratio 4:5. Second part i...
There are three numbers 'u', 'v' and 'w' (u < v < w) such that 'v' is equal to the average of 'u' and 'w'. 80% of 'w' is equal to 'u' and the difference...
A number exceeds 45 times its reciprocal by 5/6. Find the number.
Find the remainder when the number (289n + 147) is divided by 17.
Twin prime numbers are the prime numbers whose difference is always equal to 2. The number of twin primes between 35 and 100 is: