Question
The HCF and LCM of two consecutive even number is 2 and
112 respectively. Find the sum of reciprocal of these two numbers?Solution
HCF = 2 Ratio =  : y 2x : 2y LCM = 2 × x×y (where x and y are coprime) 2 × x × y = 112 x × y = 56 factor 7 and 8 2x : 2y = 14 and 16 Sum as reciprocal = 1/14 + 1/16 = (8+7)/112 = 15/112
More HCF and LCM Questions
342 – 232 + 256 – 104 = ?
14 × 11 + 25 – ? = 21% of 300
2850 ÷ 2.5 - ? × 42 = 300
What will come in the place of question mark (?) in the given expression?
(72 × 6 ÷ 12) × 6 = ?
Find the value of 325 × 5 + 31 × 21 – 22 × (63 − 52).
√? = 80% of 720 - 22% of 2500
5555 ÷ 11 ÷ 5 = 100 + ?
- What will come in place of (?) in the given expression.
[45 + (36 ÷ 6)] × 2 – 10 = ? (23.95)2 – (25.006)2 + (8.0099)2 – (7.07)2 = ? - (14.990)2
If a³ - b³ = (a - b)(a² + ab + b²), find a³ - b³ when a = 10 and b = 4.
Relevant for Exams:
