User Forum

Fill in the blanks and select the correct option.
(i) HCF of 48 and 72 is ______.
(ii) The value of MMDCCXIII + MDCCXLV is ______.
(iii) Common prime factor of 14 and 21 is ______.
(iv) The estimated difference of 42563
and 18325, when rounded off to
nearest thousands, is ______.

If you start with the number 4321, how many iterations of the kaprekar process will it take to reach 6174?

A 4
B 3
C 2
D 5

Which of the following figures is NOT exactly embedded in the Figure (X) as one of its parts?


A
B
C
D

Vidya travelled 2/5 of his journey by bus, 1/4 of the journey by metro and the remaining journey of 2 km by rickshaw. What was the total distance travelled by Vidya?

A 41/7 km
B 6 km
C 40/7 km
D 35/8 km

In a row of students, Avantika is thirteenth from the left end and Manav is tenth from the right end. When Avantika and Manav interchange their positions, Avantika becomes twenty-fourth from the left end. Which of the following will be Manav's new position from the right end?

A20^th
B24^th
C21^st
D22^nd

A number consist of two digits. The digit in the ten’s place exceeds the digit in the unit’s place by 4. The sum of the digits is of the number. Find the twice of number obtained by interchanging the digits.

A35
B48
C96
D84

Which of the following is true for the rational numbers

A(a × b) × c = a × c + b × c
B(a ÷ b) × c = a × c – b × c
C(a – b) × c = a × c – b × c
Da × (b + c) = a × c – b × c

ax + by + c = 0 does not represent an equation of line, if ______.

Aa = c = 0, b ≠ 0
Bb = c = 0, a ≠ 0
Ca = b = 0
Dc = 0, a ≠ 0, b ≠ 0

On field day, Nitin jumped 4⁷⁄₁₂ feet and Anil jumped 3¹⁄₆ feet. How much farther did Nitin jump than Anil ?

A 2 feet
B 1⁵⁄₆ feet
C 1⁵⁄₁₂ feet
D ⁵⁄₁₂ feet

Find the value of .


A27
B17
C20
D14