Quantitative Aptitude - Arithmetic Ability Questions

In a motor of 120 machine parts, 5% parts were defective. In another motor of 80 machine parts, 10% parts were defective. For the two motors considered together, the percentage of defective machine parts were

Two numbers are in the ratio 3:5. If 6 is added to both of them, the ratio becomes 2:3. The numbers are

In the following question, select the odd letters from the given alternatives.

Select the odd word/letters/number/number pair from the given alternatives.

Choose the odd word/letters/number/number pair from the given alternatives.

If 9x+2 = 240 + 9x, the value of (8x)x is

What is the value of [(sin 7x – sin 5x)÷(cos 7x + cos 5x)] – [(cos 6x – cos 4x)÷(sin 6x + sin 4x)]?

­ If the selling price of an item is Rs 1150 after getting a discount of 8%, what is its marked price?