Quantitative Aptitude - Arithmetic Ability Questions

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

The marked price of a shirt is twice of the cost price. To earn a gain of 25%, what should be the discount percentage?

If A, B and C are denoting Mean, Median and Mode of a data and A : B = 9 : 8. Then the ratio of B : C is

In ΔXYZ measure of angle Y is 90°. If cosecX = 17/15, and XY = 4cm, then what is the length (in cm) of side YZ?

The value of sinθ1+cosθ + sinθ1-cosθ

If the value 5 = 2.236,then calculate the value of 405 - 1280-125

A contractor has got two orders A and B. On one (A) he spends Rs. 25,000 and makes a bill of Rs. 30,500. On the other (B) he makes a bill keeping a profit of 20%. Which of the two orders is more profitable to him?

Three electronic devices make a beep after every 48 sec, 72 sec and 108 sec respectively. They beeped together at 10 a.m. The time when they will next make a beep together at the earliest is