All Exams Test series for 1 year @ ₹349 only
Question

Two complementary angles are such that twice the measure of one angle is equal to three times the measure of the other. The measure of the larger angle is:

This question was previously asked in
RRB NTPC 2025 Graduate CBT 2 Question Paper PDF (10-Jul-2026) (Shift 1)
The correct answer is

$54^{o}$ 

Let the two complementary angles be \(a\) and \(b\), with \(a + b = 90^\circ\).

Given \(2a = 3b \Rightarrow a = \frac{3b}{2}\).

Substituting: \(\frac{3b}{2} + b = 90^\circ \Rightarrow \frac{5b}{2} = 90^\circ \Rightarrow b = 36^\circ\).

Then \(a = 90^\circ - 36^\circ = 54^\circ\).

Hence, the measure of the larger angle is 54°.

Was this answer helpful?

Similar Questions

  1. The measure of an angle is one half of its supplementary angle. Find its measure.
  2. The sum of two angles is $155^\circ$ and their difference is $\frac{\pi}{2}$. The value of the greater angle (in radians) is:
  3. The measure of an angle is three times the measure of its complement. The angles are respectively:
  4. The supplement of $70^\circ$ is:
  5. The cost price of 120 g of rice is the same as the selling price of 150 g of it. The percentage loss is:
  6. Which native Indian dynasty issued their own coins with portraits of their rulers on them?
  7. The angle formed by the pages of a fully open book, with just few pages, is theoretically:
  8. What is the sum of the angle complementary to $15^\circ$ and the angle supplementary to $125^\circ$?

  9. Two adjacent angles form an angle of $100^{\circ}$. The larger angle is $20^{\circ}$ less than five times the smaller angle. The larger angle is:
  10. When an arm of an angle is extended to double its length, then the measure of the angle:

Important Questions from Lines and Angles

  1. Two parallel lines are intersected by a transversal, the corresponding angles are:

  2. If l, m, n are lines such that, l is parallel to n and m is parallel to n, then, ______

  3. There are three points P, Q and R on a straight line such that PQ : QR = 3 : 5. If n is the number of possible values of PQ : PR, then what is n equal to ?

  4. Two cars start from a point at the same time and travel on two different roads at right angles to each other. Their speed is 18 km/h and 72 km/h respectively. What will be the distance between them after 6 seconds?

  5. If angles of a triangle are in the ration of 2 : 3 : 4, then the measure of the smallest angle is:

Need Expert Advice?
Upcoming Exams
RRB NTPC
September 27, 2026
Test Series
RRB NTPC img
Railways
RRB NTPC Under Graduate 2026 New Mock Test Series
1580 Tests 2 Tests Free
469 Attempts
4.3(493)
English, Hindi, Telugu +7 More

Start Your Preparation with Prepp Mobile App

Download the app from Google Play & App Store
Download the app from Google Play & App Store
Prepp Mobile App