By selling 150 mangoes, a fruit-seller gains the selling price of 30 mangoes. Find the gain percent?

Byadmin February 2, 2020July 25, 2021

By selling 150 mangoes, a fruit-seller gains the selling price of 30 mangoes. Find the gain percent?

A. 20%
B. 25%
C. 18%
D. 30%
Explanation:
SP = CP + g
150 SP = 150 CP + 30 SP
120 SP = 150 CP
120 — 30 CP
100 — ? => 25%

Mathematics Mcqs | Mensuration

The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)?

The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)?

A. 23.57 cm
B. 47.14 cm
C. 84.92 cm
D. 94.94 cm
Let the side of the square be a cm.
Parameter of the rectangle = 2(16 + 14) = 60 cm Parameter of the square = 60 cm
i.e. 4a = 60
A = 15
Diameter of the semicircle = 15 cm
Circimference of the semicircle
= 1/2(∏)(15)
= 1/2(22/7)(15) = 330/14 = 23.57 cm to two decimal places

Read More The parameter of a square is equal to the perimeter of a rectangle of length 16 cm and breadth 14 cm. Find the circumference of a semicircle whose diameter is equal to the side of the square. (Round off your answer to two decimal places)?
Areas | Mathematics Mcqs

Area of a square with side x is equal to the area of a triangle with base x. The altitude of the triangle is:________?

Area of a square with side x is equal to the area of a triangle with base x. The altitude of the triangle is:________?

A. x/2
B. x
C. 2x
D. 4x

Read More Area of a square with side x is equal to the area of a triangle with base x. The altitude of the triangle is:________?
Mathematics Mcqs | Permutations and Combinations

There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?

A. 870
B. 435
C. 30!
D. 29! + 1

Read More There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?
Mathematics Mcqs | Time & Distance Mcqs

Asghar traveled from his house to his office at 10 km/hr and returned at rate of 9 km/hr. Rohit travelled through the same path both ways at 12 km/hr and took 10 minutes less than Asghar. What is the distance between Asghar’s house and his office?

Asghar traveled from his house to his office at 10 km/hr and returned at rate of 9 km/hr. Rohit travelled through the same path both ways at 12 km/hr and took 10 minutes less than Asghar. What is the distance between Asghar’s house and his office?

A. 3000m
B. 7500m
C. 3750m
D. 7000m
Average speed for Raj is: v = (2*9*10)/(9+10) = 180/19 km/hr = 50/19 m/s
Average speed for Rohit = 12 km/hr = 10/3 m/s
Now, v = d/t
As d is same, v*t = constant.
Let, t be the time taken by Rohit in seconds. Hence, time taken by Raj is (t +600)s
50/19 * (t + 600) = 10/3 * t
150*(t + 600) = 190t
t = 2250s
Let d be the distance between the house and the office
2d = 2250 * 10/3
2d = 7500 m
d = 3750m

Read More Asghar traveled from his house to his office at 10 km/hr and returned at rate of 9 km/hr. Rohit travelled through the same path both ways at 12 km/hr and took 10 minutes less than Asghar. What is the distance between Asghar’s house and his office?

General Knowledge MCQs | Mathematics Mcqs

A Quadrillion has _________ zeros?

A Quadrillion has _________ zeros?

A. 15 zeros
B. 18 zeros
C. 21 zeros
D. None of these

Thousand, Million, Billion, Trillion, Quadrillion, Quintillion-each comes with three additional zeroes. Even though there are names beyond Quintillion.
The numbers are written with scientific notation to make them easier to read and understand.

Name	Number
Million	1 x 106
Billion	1 x 109
Trillion	1 x 1012
Quadrillion	1 x 1015
Quintillion	1 x 1018
Sextillion	1 x 1021
Septillion	1 x 1024
Octillion	1 x 1027
Nonillion	1 x 1030
Decillion	1 x 1033
Undecillion	1 x 1036
Duodecillion	1 x 1039
Tredecillion	1 x 1042
Quattuordecillion	1 x 1045
Quindecillion	1 x 1048
Sexdecillion	1 x 1051
Septendecillion	1 x 1054
Octodecillion	1 x 1057
Novemdecillion	1 x 1060
Vigintillion	1 x 1063
Unvigintillion	1 x 1066
Duovigintillion	1 x 1069
Trevigintillion	1 x 1072
Quattuorvigintillion	1 x 1075
Quinvigintillion	1 x 1078
Sexvigintillion	1 x 1081
Septenvigintillion	1 x 1084
Octovigintillion	1 x 1087
Nonvigintillion	1 x 1090
Trigintillion	1 x 1093
Untrigintillion	1 x 1096
Duotrigintillion	1 x 1099
Ten-duotrigintillion (or Googol)	1 x 10100
Skewer’s Number	1 x 10130
Centillion	1 x 10303
Googolplex	1 x 1010100

Compound Interest | Mathematics Mcqs

If the C.I. on a sum for 2 years at 12 1/2 % per annum is Rs. 510, the S.I. on the same sum at the same rate for the same period of time is________?

If the C.I. on a sum for 2 years at 12 1/2 % per annum is Rs. 510, the S.I. on the same sum at the same rate for the same period of time is________?

A. Rs. 400
B. Rs. 450
C. Rs. 460
D. Rs. 480
Explanation:
Let the sum be Rs. P. Then,
[P(1 + 25/(2 * 100))2 – P] = 510
P[(9/8)2 – 1] = 510.
Sum = Rs. 1920
So, S.I. = (1920 * 25 * 2) / (2 * 100) = Rs. 480

Read More If the C.I. on a sum for 2 years at 12 1/2 % per annum is Rs. 510, the S.I. on the same sum at the same rate for the same period of time is________?

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