# CBSE Class 10 Questions and Answers

CBSE Class 10 is the most important stage in a student’s life. The pressure of the Boards exams is not easy to deal with, but we can definitely help you to tackle the CBSE syllabus for Class 10.

We, at Topper Learning, have just the board exam strategy that you have been looking for. Its read, revise, practice, assess. To conquer the syllabus for CBSE class 10, you start by reading our study notes. These notes will quickly take you through the key point of each chapter that you will find in the Class 10 syllabus.

### CBSE X - Mathematics

## how to solve (2-x)(5-x)-4

### Asked by thakkerjay997 | 24th Jun, 2019, 07:41: PM

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### CBSE X - Mathematics

## Please answer this maths question sir

### Asked by pardeepkumar2281 | 24th Jun, 2019, 07:35: PM

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### CBSE X - Physics

## Draw the lebelled sketch of human eye

### Asked by aakash.shankar6 | 23rd Jun, 2019, 09:24: PM

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### CBSE X - Civics

## how is power sharing done in belgium different from srilanka?

### Asked by kushalnadiad | 23rd Jun, 2019, 11:32: AM

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### CBSE X - Civics

## what is the need for power sharing ?

### Asked by kushalnadiad | 23rd Jun, 2019, 11:29: AM

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### CBSE X - Geography

## classify resources on the basis of origin?

### Asked by kushalnadiad | 23rd Jun, 2019, 10:48: AM

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### CBSE X - Biology

## Write short notes on schematic representation of transport and exchange of oxygen and carbon dioxide.

### Asked by sarraf1209 | 23rd Jun, 2019, 09:07: AM

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### CBSE X - Biology

## What is the main function of kidney and how it is used in removal of waste from our body

### Asked by aakash.shankar6 | 22nd Jun, 2019, 09:34: PM

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### CBSE X - Mathematics

## HOTS for Quadratic Equations
1. Had Ravita scored 10 more marks in her Mathematics test out of 30 marks, 9 times these marks would have been the square of her actual marks. How many marks did she get in the test?
2. A motor boat whose speed is 18 km/h in still water takes 1 hour more to go 24 km upstream than to return downstream to the same spot. Find the speed of the stream.
3. In a class test, the sum of marks obtained by P in Mathematics and Science is 28. Had he got 3 more marks in Mathematics and 4 marks less in Science, the product of marks obtained in the two subjects would have been 180? Find the marks obtained in two subjects separately.
4. Solve for x:
5. Solve for x:
6. At �t� minutes past 2 pm, the time needed by the minute hand of a clock to show 3 pm was found to be 3 minutes less than minutes. Find ‘t’.
7. A train, travelling at a uniform speed for 360 km, would have taken 48 minutes less to travel the same distance if its speed were 5 km/hr more. Find the original speed of the train.
8. If the roots of the equation (b – c)x^{2} + (c – a)x + (a – b) = 0 are equal, then prove that 2b = a + c.
9. If the roots of the equations
ax^{2} + 2bx + c = 0 and bx^{2} –
are simultanously real then prove that b^{2} = 4ac.
10. If the roots ff the equation
(c^{2} – ab)x^{2} – 2(a^{2} – bc)x + b^{2} – ac = 0 are equal, then prove that
either a = 0 or a^{3} + b^{3} + c^{3} = 3abc

### Asked by ritvikgupta055 | 22nd Jun, 2019, 04:22: PM

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### CBSE X - Chemistry

## How many groups and periods were in Mendeleev's periodic table?

### Asked by saradamahapatra9999 | 22nd Jun, 2019, 01:11: PM

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