# Mathematics Quiz For RRB NTPC : 21st January 2020 for Number system, profit & loss and Simple interest

Q1. Given: 2x – 4 ≤ 2 – x/3 and 2(2x + 5) > 3x – 5, then x can take which of the following values?
(a) -14
(b) 3
(c) 4
(d) 14

Q2. A painter can paint a fence in 24 hours. After 6 hours he takes a break. What fraction of the fence is yet to be painted?
(a) 0.6
(b) 0.2
(c) 0.75
(d) 0.8

Q3. If 1/6 of x – 7/2 of 3/7 equals – 7/4, then the value of x is
(a) -1.5
(b) 3
(c) -2.5
(d) 6

Q4. x and y are two numbers such that their mean proportion is 9 and third proportion is 243. What is the value of x and y?
(a) 3 and 9
(b) 3 and 27
(c) 6 and 27
(d) 6 and 81

Q5. If 21% of an electricity bill is discounted, Rs 1817 is still to be paid. How much was the original bill amount?
(a) Rs 1502
(b) Rs 2336
(c) Rs 2300
(d) Rs 1538

Q6. The average revenues of 7 consecutive years of a company is Rs 79 lakhs. If the average of first 4 years is Rs 74 lakhs and that of last 4 years is Rs 86 lakhs, what is the revenue for the 4th year?
(a) Rs 87 lakhs
(b) Rs 89 lakhs
(c) Rs 85 lakhs
(d) Rs 83 lakhs

Q7. A shopkeeper, sold dried apricots at the rate Rs 1210 a kg and bears a loss of 12%. Now if he decides to sell it at Rs 1331 per kg, what will be the result?
(a) 6.4 percent loss
(b) 3.2 percent gain
(c) 6.4 percent gain
(d) 3.2 percent loss

Q8. If the shopkeeper sells an item at Rs 1600 which is marked as Rs 2000, then what is the discount he is offering?
(a) 25 percent
(b) 20 percent
(c) 30 percent
(d) 10 percent

Q9. If cosecA + cotA = x, then value of x is
(a) 1/(cosecA – cotA)
(b) 1/(secA – tanA)
(c) 1/(secA – cosA)
(d) 1/(sinA – cosA)

Q10. Dalajit lent Rs 10800 to Jaabir for 3 years and Rs 7500 to Kabir for 2 years on simple interest at the same rate of interest and received Rs 1422 in all from both of them as interest. The rate of interest per annum is
(a) 3.5 percent
(b) 4 percent
(c) 3 percent
(d) 4.5 percent

#### Solutions:

##### RRB NTPC 2019 | RRB JE Classes Day 1 | Review of Previous Year Quant Papers for RRB | Sumit Sir

Important Links for RRB NTPC Recruitment 2019
RRB NTPC Previous year Cut Off | 1st & 2nd Stage Examination
RRB NTPC Recruitment 2019: Check FAQs
RRB NTPC Exam Pattern 2019 – Check Here
RRB NTPC Previous Year Exam Analysis
RRB NTPC Exam Syllabus

×

Thank You, Your details have been submitted we will get back to you.

Join India largest learning distination

What You Will get ?

• Daily Quizes
• Subject-Wise Quizes
• Current Affairs
• previous year question papers
• Doubt Solving session

OR

Join India largest learning distination

What You Will get ?

• Daily Quizes
• Subject-Wise Quizes
• Current Affairs
• previous year question papers
• Doubt Solving session

OR
Join India largest learning distination

What You Will get ?

• Daily Quizes
• Subject-Wise Quizes
• Current Affairs
• previous year question papers
• Doubt Solving session

Enter the email address associated with your account, and we'll email you an OTP to verify it's you.

Join India largest learning distination

What You Will get ?

• Daily Quizes
• Subject-Wise Quizes
• Current Affairs
• previous year question papers
• Doubt Solving session

## Enter OTP

Please enter the OTP sent to
/6

Did not recive OTP?

Resend in 60s

Join India largest learning distination

What You Will get ?

• Daily Quizes
• Subject-Wise Quizes
• Current Affairs
• previous year question papers
• Doubt Solving session

Join India largest learning distination

What You Will get ?

• Daily Quizes
• Subject-Wise Quizes
• Current Affairs
• previous year question papers
• Doubt Solving session

## Almost there

+91

Join India largest learning distination

What You Will get ?

• Daily Quizes
• Subject-Wise Quizes
• Current Affairs
• previous year question papers
• Doubt Solving session

## Enter OTP

Please enter the OTP sent to Edit Number

Did not recive OTP?

Resend 60

## By skipping this step you will not recieve any free content avalaible on adda247, also you will miss onto notification and job alerts

Are you sure you want to skip this step?

## By skipping this step you will not recieve any free content avalaible on adda247, also you will miss onto notification and job alerts

Are you sure you want to skip this step?