Question
Two numbers are in the ratio 4:7. The product of their
H.C.F. and L.C.M. is 5488. The sum of the numbers is:Solution
Let the numbers be 4x and 7x respectively. First number × second number = HCF × LCM => 4x × 7x = 5488 => x2 = [5488/(4×7)] = 196 => x = √196 = 14 Sum of the numbers = 4x + 7x = 11x = 11 × 14 = 154
Determine the sum of the first 16 odd numbers.
For which range of 'p' does the expression 19p - 2p²- 35 have a positive value??
The remainder obtained when (47³ + 35³) is divided by 41 isÂ
16Â Â Â Â Â Â Â Â Â Â 4Â Â Â Â Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â Â Â Â Â 1.5Â Â Â Â Â Â Â Â Â 1Â Â Â Â Â Â Â Â Â Â Â Â Â 1.875
...The sum of the digits of a two-digit number is 9, and when the digits are reversed, the number decreases by 45. Find the changed number.
Find the unit digit of (76101 - 6).
Find the sum of all natural numbers less than 1,000 that are divisible by both 3 and 5 but not by 7.
How many times I write digit ‘1’ in first hundred natural numbers?Â
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