Correct Answer: 16

Solution : Given:
If A denotes +, B denotes ×, C denotes –, and D denotes ÷.
140 D 7 A 30 = 25 B ? D 8

After interchanging the letters with symbols the equation becomes –
140 ÷ 7 + 30 = 25 × ? ÷ 8
20 + 30 = 25 × ? ÷ 8
50 × 8 = 25 × ?
400 = 25 × ?
? = 400 ÷ 25
? = 16

So, 16 is the required answer. Hence, the first option is correct.

Hello,

According to the new rule that has been released by the government, student under the age of 16 cannot be admitted to coaching institutes and as you are still in class 10th, I would recommend you to first focus on your studies and give your board exams as they matter a lot. Your academics must be strong, you can start self study for IIT JEE Mains right now and in 11th or 12, you can go for the coachings. Top institutes in Delhi for your preparation are:

1) Allen

2) FIITJEE

3) Aakash Institute

4) Physics Wallah

5) T.I.M.E

Hope this helps you,

All the best

Hello Aspirant,

Students can begin preparing for the JEE Main 2025 Exam by making a roadmap that they will follow. Examine the previous JEE syllabus and format. First, decide which subject you want to study, then take thorough notes on the subjects that are most important. Establish a strong foundation in mathematics, chemistry, and physics. Recognize your areas of error and continue practicing until you achieve error-free performance. Sustain your motivation to stay goal-focused.

Elevated weight JEE Core Topics in Physics

Laws of Motion: The First Law of Motion (force and inertia), Second Law of Motion (momentum), and Third Law of Motion (impulse) are crucial concepts to remember under this unit. These subjects have a 4% weight.

Gravitation: acceleration brought on by gravity, which varies with depth and altitude. The topic has a 2% weighting.

Elastic behavior, the stress-strain relationship, Hooke's Law, Young's modulus, and the modulus of rigidity are among the properties of solids and liquids.

You can refer the below link for more details:

https://engineering.careers360.com/articles/jee-main-2025

ALL THE BEST