Multiple Choice Question

If Δ × 2.2 + 0.33 × 3/4 − 1/20 × 0.55 = 0.99, then the value of Δ is:

A

0.35
B

1
C

0.25

Explanation:

0.33 × 3/4 = 0.2475, 1/20 × 0.55 = 0.0275, so 2.2Δ + 0.22 = 0.99, hence 2.2Δ = 0.77, Δ = 0.35.

Finding Something Else?

Read the Complete Topic

This question belongs to the set "RRB Group D 2025 Question Paper – 27 November Shift 1 | Set 2 (Q26–Q50) Mathematics". Click below to read detailed notes and attempt the full quiz.

View Full Post →

Try These Similar MCQs

P is any point inside the rectangle ABCD. If PA = 98 cm, PB = 91 cm and PC = 21 cm, then the length of PD (in cm) is equal to:

The vertices of a convex pentagon (in order) are P(0,0), Q(6,0), R(8,3), S(4,7), T(0,4). Find the area of the pentagon.

A metal rod is divided into three parts A, B and C. The lengths of A and B are in the ratio 9 : 20, and the lengths of C and B are in the ratio 5 : 11. If the difference between the lengths of A and C is 10 cm, find the total length (in cm) of the metal rod.

Soniya got married 15 years ago. Her present age is 8/5 times her age at the time of her marriage. Her sister was 8 years younger to her at the time of her marriage. Find the present age of her sister.

The average age of 26 students of a class is 26 years. If the age of the teacher is also included, the average age of the whole group becomes 27 years. The age (in years) of the teacher is:

If 20% of a number is added to 90, then the result is the same number. 80% of the same number is:

Explore Related Study Material

$Class 5 Maths MCQ Test | NCERT Based Mathematics Questions (Set 1)$ Quiz

Class 5 Maths MCQ Test | NCERT Based Mathematics Questions…

Feb 04, 202686 views View →

Note

Some Basic Formula in number system

Nov 23, 20192.2k views View →

Test

Mathematics Practice Quiz on Simple and Compound Interest

Jul 31, 2024810 views View →

Note

Understanding Quadratic Equations: Concept, Formula, and Practice Problems

Oct 23, 2024348 views View →