Question
How many numbers lie between 2000 and 3000 divisible by
5 can be made with the digits 2, 3, 4, 5, 6, 7 and 8 without repeating any digit?Solution
Divisible of 5 means unit place must have 5 (since 0 is not in the list). And thousands place will always be 2. This leaves us with 5 digits (3, 4, 6, 7, 8) to be filled in 2 places (2 _ _ 5). This can be done in 5P2 ways or 20 ways. So 20 numbers can be formed.
[(5/6 of 720.21) + 39.79% of 550.14] × (√120.91 + 29.99% of 200.09) = ?
Train 'P' travels at a speed of 45 km/h and crosses train 'Q' in 15 seconds while moving in opposite directions. Determine the speed of train 'Q' if the...
36.05 × 5.02 + 12.052 = ? + 9.09 × 4.04
What approximate value will replace the question mark (?) in the following?
? –...
15.232 + 19.98% of 539.99 = ? × 8.99
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
Arjun has a sibling who is 5 years older than him. When Arjun was born, his mother was 30 years old, and his father was 32 years old. If his sibling was...
? = 28.04² ÷ (4.01⁵ + 9.89 × 20.20) + 84.56% of (198.76 × 30.03)
(1550.23 ÷ 30.98) + (864.32 ÷ 23.9) + 1724.11 = ?
((341.789)1/3 × (0.0049)1/2)× 429.798/6.88 =?
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