Mathematics · Simple Interest

Anandi bought a smart watch from an electronic store for Rs.4,400. Since she had less money, she paid Rs.2,00,000 for down payment and the shopkeeper offered her an alternative to pay Rs.2,440 after 1 month. Find the rate of interest per annum being charged at simple interest by the shopkeeper in this instalment option?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

115%
222%
310%
420%✓

Correct answer

20%

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