Exams

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

16 ÷ 4 x 8 - 10 + 14 = 12

∆UVW is right angled at V. If cosU = 8/17, then what is the value of sinW ?

Which of the following statements is INCORRECT?

I) Bleaching powder is a pale yellow powder

II) Dry NH3 gas turns red litmus blue

III) The pH of rain water is nearly 7

IV) The pH of acid rain is nearly 5.6

What is called the descendants of Dutch and Portuguese colonies in Sri Lanka?

$$\begin{gathered} (4x - 7)2 = ? \\ \end{gathered}$$

What per cent of the total geographic area of India is occupied by the Protected Areas?

Which of the following statement(s) is/are TRUE?

I. √(64) + √(0.0064) + √(0.81) + √(0.0081) = 9.07
II. √(0.010201) + √(98.01) + √(0.25) = 11.51

Which of the following sentences is correctly punctuated?