Mathematics

Q.

30 opposite words in English from a to z?

Q.

An athlete completes one round of a circular track of diameter $200\mathrm{m}$ in $40\mathrm{s}.$ What will be the distance covered and the displacement at the end of $2\min 20\mathrm{s}?$

Q.

During an experiment, a signal from a spaceship reached the ground station in five minutes. What was the distance of the spaceship from the ground station? The signal travels at the speed of light, that is, 3 × 10⁸m/s.

Q.

What are the five rational numbers between $\frac{3}{5}$and$\frac{4}{5}$?

Q.

The temperature at $12$ noon was $10°C$ above zero. If it decreases at the rate of $2°C$ per hour until midnight, at what time would the temperature be $8°C$ below zero? What would be the temperature at mid-night?

Q.

Question 2(a)
Write a pair of negative integers whose difference gives 8.

Q.

$\frac{2}{5}$ of the total number of students of a school come by car while $\frac{1}{4}$of students come by bus to school. All the other students walk to school of which $\frac{1}{3}$walk on their own and the rest are escorted by their parents. If $224$ students come to school walking on their own, how many students study in that school?

Q.

Convert $200$ Million Dollars In Rupees

Q.

What Is Bulk Posting In SBI?

Q.

α, β and γ are the zeroes of cubic polynomial $p\left(x\right)=a{x}^3+b{x}^2+cx+d$, $(a\ne 0)$. Then product of their zeroes [αβγ] is?

Q.

Find a quadratic polynomial, whose zeroes are $-3\mathrm{and}4$.

Q.

Question 3 (i)
Express 5 cm in meter and kilometer

Q.

To stitch a shirt $2\mathrm{m}15\mathrm{cm}$ cloth is needed. Out of $40\mathrm{m}$ cloth, how many shirts can be stitched, and how much cloth will remain?

Q.

The cost price of 20 articles is the same as the selling price of x articles.The value of x is (given profit =20%).

Q.

Which is a pair of integers whose sum gives

(a) a negative integer (b) zero

(c) an integer smaller than both the integers.

(d) an integer smaller than only one of the integers. (e) an integer greater than both the integers.

Q.

How is $1$ Degree Equal To $60$ Minutes?.

Q. A shopkeeper earns a profit of ₹ 1 by selling one pen and incurs a loss of 40 paise by selling a pencil. If she sells 70 pens, then how many pencils does she have to sell if there is no profit or loss in the transaction.

1. 175
2. 174
3. 170
4. 185

Q.

The speed of light in vacuum is $3\times {10}^{8}m/s.$ Sunlight takes about $8$ minutes to reach the Earth. Express distance of the Sun from Earth in standard form.

Q.

$3x-5y-4=0$ and $9x=2y+7$; solve it with the elimination method.

Q.

How is the Pythagorean theorem used in real life?

Q.

A water tank has steps inside it. A monkey is sitting on the topmost step (i.e., the first step). The water level is at the $9^{th}$ step.

(i) He jumps $3$ steps down and then jumps back $2$ steps up. In how many jumps will he reach the water level?

Q.

The sum of three consecutive numbers is 51. Find the numbers.

1. 16, 17, 18

2. 15, 16, 17

3. 18, 19, 20

4. 17, 18, 19

Q. Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?

1. $1$
2. $\frac{1}{2}$
3. $\frac{4}{3}$
4. $\frac{3}{4}$

Q. The rational number between 2/3and 3/4 is=

Q.

In a class test containing 15 questions, 4 marks are given for every correct answer and (–2) marks are given for every incorrect answer. ​​​​​
(i) Gurpreet attempts all questions but only 9 of her answers are correct. What is her total score?
(ii) One of her friends gets only 5 answers correct. What will be her score? [3 MARKS]

Q.

Is zero a rational number? Justify your answer.

Q.

A water tank has steps inside it. A monkey is sitting on the top most step (i.e., the first step). The water level is at the ninth step .

(1) He jumps 3 steps down and then jumps back 2 steps up. In how many jumps will he reach the water level ?

(2) After drinking water , he wants to go back . For this he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back the top step ?

(3) If the no. Of steps moved down is represented by negative integers and the no. Of steps moved up by positive integers , represent his moves in part 1 and 2 by completing the following; (1) -3+2-..... = -8 (2) 4-2+....... =8. In 1 the sum (-8) represent going down by eight steps. So, what will the sum 8 in 2 represent ?

Q. The probability of getting a prime number when a die is rolled is $\frac{1}{2}$.

1. False

2. True

Q.

Solve :$4power3/2$ or $4^{\raisebox{1ex}{$3$}\!\left/ \!\raisebox{-1ex}{$2$}\right.}$

Q. In a test (+5) marks are given for every correct answer and (-2) marks are given for every incorrect answer.
i. Radhika answered all the questions, scored 30 marks and got 10 correct answers
ii. Jay also answered all the questions, scored (-12) marks though he got 4 correct answers.
How many incorrect answers had they attempted?

1. 22
2. 24
3. 26
4. 28