The LCM of two numbers is 840 and their HCF is 7 If one of the numbers is 56 find the other ........

Quantitative Aptitude (CPO) LCM, HCF

The LCM of two numbers is 840 and their HCF is 7. If one of the numbers is 56, find the other.

This questions was previously asked in

SSC CPO 11th Nov 2022 Shift 2

120

112

105

- To find the other number, use the formula: LCM × HCF = Number 1 × Number 2.

- Given: LCM = 840, HCF = 7, and Number 1 = 56.

- Plug values into formula: 840 × 7 = 56 × Number 2.

- Simplify: Number 2 = (840 × 7) / 56.

- Calculate: Number 2 = 105.

Option 1: 120

- Calculation gives 105, not 120.

Option 2: 112

- Calculation gives 105, not 112.

Option 3: 105

- This matches the calculation.

Option 4: 84

- Calculation gives 105, not 84.

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