Quantitative Aptitude - Arithmetic Ability Questions

If Sumita earns 75/4% more than her boyfriend, find the approximate % her boyfriend earns less than Sunita.

If tanθ = 815, then 1-sinθ1+sinθ is

Which of the following equations has real and distinct roots?

Select the odd number from the given alternatives.

If x+1x = 4, then what is the value of x6+1x6 ?

ΔXYZ is similar to ΔPQR. If ratio of Perimeter of ΔXYZ and Perimeter of ΔPQR is 4:9 and if PQ = 27 cm, then what is the length of XY (in cm)?

Dipali bought a set of cups for Rs. 375, but then had to sell it later to clear old stocks for Rs. 345. What is the percentage of loss that she incurred?

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