3. Một Thư Viện Có 960 Cuốn Truyện Bài - Gauthmath

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Question

Leona has a jar containing some sweets, of which 90 are pear drops. She takes a random sample of 70 sweets from the jar and finds that 22 of these are pear drops. She then puts the 70 sweets back into the jar. Work out an estimate for the total number of sweets in the jar. Give your answer to the nearest integer.SHOW LESS165

Solution

user avatar imageClarieUniversity of technology in Ho Chi Minh City · Tutor for 5 yearsAnswer286ExplanationDetail stepsBased on the given conditions, formulate:: 90 \times 70 \div 22Cross out the common factor: \dfrac{45 \times 70}{11}Calculate the product or quotient: \dfrac{3150}{11}Find the closest integer to \dfrac{3150}{11}:: 286Click to rate:99.2(767 votes)Search questionBy textBy image/screenshotDrop your file here orClick Hereto upload

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