Question
The sum of two numbers is 143, and their difference is
13. What is the L.C.M of these two numbers?Solution
Let the two numbers be ‘a’ and ‘b’ where a > b.
So, a = b + 13
We have a + b = b + 13 + b = 143
So, b = (143 – 13) ÷ 2 = 65
L.C.M of 65 and 78 = 390
More HCF and LCM Questions
- 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.)
- 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.)
11.232 + 29.98% of 599.99 = ? × 6.99
2387.56 + ? – 2248.14 = 1765.45 – 1574.23
45.05% of 260.05 – 20.15% of 149.99 × 3.02 = ?
(519.98 + ?) ÷ 13.01 = √440 + 20.0
7.9% of 174.92 + 24.99 - 131.99 ÷ 11.95 × 2.98 = ?
1560.182 ÷ √168 + √143 * √224 – 4649.87 ÷ 30.883= ?
70.008% of 399.98 + ?% of 399.999 = 80.105% of 599.998
- 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.)
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