Quantitative Aptitude - Arithmetic Ability Questions

Two cyclists P and Q cycle at 20 km/hr and 16 km/hr towards each other respectively. What was the distance (in kms) between them when they started if they met after 40 minutes?

X does 25% of a work in 20 days. Y joins X and they together finish the remaining work in 15 days. Y alone can do the whole work in ___ days.

The time taken by a train 160 m long, running at 72 km/hr, in crossing an electric pole is

How many three digit numbers are there in which all the digits are odd?

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

If 25% of an electricity bill is deducted, Rs 1788 is still to be paid. How much was the bill?

Find the odd one out.

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