IBPS Government Jobs Exams Numerical Ability Permutation and Combination

Two girls and four boys are to be seated in a row in such a way that no two girls sit together. In how many different ways, can this be done ?
A)720 B)480 C)360 D)590 E)None of these

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IBPS Other Question

The market price of a watch is Rs 800. A shopkeeper gives two successive discounts and sells the watch at Rs 612. If the first discount is 10% then the second discount is
A)12% B)20% C)15% D)10% E)None of these In a row of girls, Rakhi is fifteenth from the left and Mohini is eighteenth from the right. If they interchange their positions, then Mohini will be fifteenth from the left. How many girls are there in that row ?
A)33 B)48 C)47 D)Data inadequate E)None of these