Quantitative Aptitude - Arithmetic Ability Questions

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

If sum of Rs.1000 amount to Rs.1331 in 3 years, compounded annually. Then, find the rate of interest per annum?

What will be the quotient when 2143 is divided by 38?

If 2x -3(x + 2) < 5 - 2x < -x + 2, then find the value of x.

If the number 247_679 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be

Find length of the arc whose central angle is 90° and radius of the circle is 3.5 cm?

A natural number, when divided by 5,6,7 or 8,leaves a remainder of 4 in each case. what is the smallest of all such numbers?

From point P, at 6 : 30 pm, a train starts moving towards Q with the speed of 40 km/hr. Another train starts moving from point Q at 7:30 p.m. towards point P at the speed of 60 km/hr. Both of them meet at 11:30 p.m. at point R. What is the ratio of PR and QR?