Quantitative Reasoning

Miscellaneous

Easy

Which of the following list of numbers is/are in Geometric Progressions ?

(A) 6, 12, 24, 48...

(B) 2, 6, 18, 20...

(C) 3, 9, 27, 81...

(D) 4, 12, 36...

Choose the correct answer from the options given below:

(A), (B) and (C) only

(A), (B) and (D) only

(B), (C) and (D) only

(A), (C) and (D) only

✅ Correct Option: 4

A GP needs a constant ratio between consecutive terms.

(A) ratio $2$ throughout, (C) ratio $3$ throughout, (D) ratio $3$ throughout, so all three qualify.

(B) gives $6/2 = 3$ and $18/6 = 3$ , but $20/18 \neq 3$ , so the ratio breaks at the last term and (B) is not a GP.

2022: 24 Aug Shift 1

How many times more applications are received for admission in B.A. in comparison to B.C.A ?

2023: 28 May Shift 1

If $5^x = 6^y = 30^7$ , then what is the value of $\frac{1}{x}+\frac{1}{y}$ ?

2026: 19 May Shift 2

If the 2nd and 10th terms of an Arithmetic Progression (AP) are 6 and -10 respectively, which term of this AP is zero?

2026: 25 May Shift 1

How many terms are there in the series 201, 208, 215, ....., 369?

2022: 24 Aug Shift 1

If W means ' $\div$ ' X means '+', Y means ' $-$ ' and Z means ' $\times$ ' then $28Z3Y4X12W6= ?$

2026: 22 May Shift 2

The 21st term of an Arithmetic Progression, whose 11th term is 38 and 16th term is 73, will be:

Solution