Home
Class 7
MATHS
One-third of a certain number exceeds (1...

One-third of a certain number exceeds `(1)/(9)th` fo the number by 20. Find the number.
The following steps are involved in solving the above problem. Arrange them in sequential order
(A) Let the number x
(B) `(2x)/(9) = 20 rArr (x)/(9) = 10 rArr x = 90`
(C) Given `(x)/(3) - (x)/(9) = 20`
(D) `(3x-x)/(9) = 20`

A

ADCB

B

ACDB

C

DACB

D

CADB

Text Solution

Verified by Experts

The correct Answer is:
B

(A), (C), (D), and (B) is the required sequential order.
Hence, the correct option is (b)
Promotional Banner

Topper's Solved these Questions

  • EQUATIONS AND THEIR APPLICATIONS

    PEARSON IIT JEE FOUNDATION|Exercise Level 2|17 Videos
  • EQUATIONS AND THEIR APPLICATIONS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|23 Videos
  • EQUATIONS AND THEIR APPLICATIONS

    PEARSON IIT JEE FOUNDATION|Exercise Essay type question|15 Videos
  • EXPRESSIONS AND SPECIAL PRODUCTS

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL 3) |25 Videos

Similar Questions

Explore conceptually related problems

Two-third of a certain number exceeds one-third of the number by 10. Find the number. The following steps are involved in solving the above problem. Arange them in sequential order (A) (2x)/(3) - (x)/(3) = 10 (given) (B) (2x -x)/(3) = 10 rArr (x)/(3) = 10 (C) rArr x = 30 (D) Let the number be x

The sum of the digits of a two-digits number is 5 and their difference is 3. Find the number. The following are the steps involved in solving the above problem. Arrange them in sequential order. (A) x+ y =5 and x-y =3 (B) Let the number be xy (C) The required number is 41. (D) x =4 and y =1 (E) Solving x +y = 5 and x -y =3

The sum of the digits of a two-digit number is 11. if 9 is subtracted from the number, then the digits interchagne their places. Find the number. The following steps are involved in solving the above problem. Arrange them in sequential order (A) Let the units digit be x. therefore , the tens digit is (11-x). therefore The number is 10(11-x)+x=110-9x . (B) Given that 110-9x-9=9x+11rArrx=5 . (C) Units digit is S and tens digit is 6 and the required number is 65. (D) The number formed by interchanging the digits is 10x+(11-x)=9x+11 .

Solve : (3x +4)/(7) - (x +5)/(14) = (x)/(28) + (x +1)/(14) The following steps are involved in solving the above problem. Arrange them in sequential order (A) 5x + 3 = (3x + 2)/(2) rArr 10 x + 6 = 3x + 2 (B) rArr 7x = -4 (C) Given (3x + 4)/(7) - (x + 5)/(14) = (x)/(28) + (x +1)/(14) rArr (6x + 8 -x -5)/(14) = (x + 2x + 2)/(28) (D) rArr x = -(4)/(7)

The sum of the digits of a two-digit number is 12. if 18 is subtracted from the number, then the digits interchange their places. Find the number. The following steps are involved in solving the above problem. Arrange them in sequential order. (A) Units digits is 5, tens digit is 7, and the number is 75. (B) Given that 120-9x-18=9x+12rArr90=18xrArrx=5 . (C) The number formed by interchanging the digits is 10x+(12-x)=9x+12 . (D) Let the digit in the units place be x. Then the digit in the tens place be (12-x). therefore The number is 10(12-x)+x=120-10x+x=120-9x .