Quantitative Aptitude - Arithmetic Ability Questions

Simplify (b5x2a3z4)*(b3x2a4z5) / (a2b3z2)

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:5 and area of ΔABC is 98 cm sq, what is the area (in sq cm) of quadrilateral BDEC?

Three balls ring at intervals of 15, 30 and 45minutes respectively. At what time will they ring together again, if they rang simultaneously at 8.00 AM?

Find out the odd word/letters/number/number pair from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Find out the odd word/letters/number/number pair from the given alternatives.

If x + 2(3-5x) > -1 - 2x < 5 - x/3; then the value of x is

sin(A+B) -­ sin(A-­B) is equal to