What will come in place of question mark (?) in the following questions ?
We need to find the value of $$420 \div 28 \times 288 \div 32$$
$$420 \div 28 = 15$$ and $$288 \div 32 = 9$$
So, the given expression equals $$15 \times 9 = 135$$ and the correct answer is option (e)
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