In field experimentation, local control is a device to

Select the correct combination of mathematical signs to sequentially replace the * signs and balance the given equation.

76 * 34 * 23 * 12 * 6 * 21

Refer to the following letter and symbol series and answer the question given below. Counting is to be done from left to right only.

Pick the odd one out.

W is the mother of E. E is the father of R. R is the brother of T. T is the wife of Y. How is W related to Y?

Choose the correct option in which the given figure is embedded

Select the number from among the given options that can replace the question mark (?) in the following series .

189, 532, 316, ? , 377

After interchanging which two numbers, the value of the given equation will be '37'?

9 × 7 + 4 ÷ 1 – 6