Quantitative Aptitude - Arithmetic Ability Questions

Consider the two similar triangles ABC and DEF. Which of the following is correct about the ratio of the area of the triangle ABC and DEF?

A girl walking at the speed of 2 km/hr covers a certain distance in 7 hours 30 minutes. If she covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of cycle?

Find the total surface area (in cm²) of a right circular cylinder of diameter 42 cm and height 14 cm

Two trains are moving in the same direction at the speed of 42 km/hr and 84 km/hr, their lengths are 320 metres and 380 metres respectively. What is the time taken (in seconds) by faster train to cross the slower train?

Two equal sum are invested in two different schemes. One scheme gives simple interest and the other gives compound interest (annual compounding).The sum of interest obtained after 2 years from both the schemes is Rs 3717. If both scheme have 13% per annum interest rate, then what is the first year interest (in Rs) for simple interest scheme?

What is the distance between the points (4,­-8) and (­-2,0)?

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

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