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40% દ્રાવણમાં 28 L સાંદ્ર પદાર્થ છે. તેનું કુલ કદ કેટલું છે?

A60 L
B65 L
C70 L
D75 L
Answer & Solution
Correct answer: C. 70 L
જો 28 L એ 40% હોય, તો કુલ જથ્થો 28 ભાગ્યા 0.4, એટલે કે 70 L થાય.
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