Explanation

The sum of the ages (in years) of both people is equal to the perfect square of 8.

So, a perfect square of 8 = 64.

Therefore, the sum of ages (in years) of both people = 64 years.

Now,

Let, the age of Irfan's be x.

Then, the age his father's be 3x.

According to the question :

➮ x + 3x = 64

➮ 4x = 64

➮ x = 64/4

➮ x = 16.

ND5-07-2023

Explanation

Let the three numbers be x,y,z

(x+y)/2=2

(y+z)/2=3

(x+z)/2=4

from all equations,

x+y=4

y+z=6

x+z = 8

Add all equations

2(x+y+z) = 18

x+y+z = 9

Avg of 3 nos = (x+y+z)/3

= 9/3

= 3

ND5-07-2023

Explanation

Profit = 8 %

Sp of car = Rs 60000

Cp = sp/1 + .profit percentage

Cp = 60000/1+ 8

Cp= 50000/9 = Rs 5555.56

Now he wants to sell at Rs  55, 000

New sp = Rs 55, 000

Profit sp-cp = 55, 000 - 5555.56 = Rs 49444.43

Profit % = profitx100/cp

Profit % = 49444.45×100/5555.56 = 889.0%

New profit % =8.1 %

ND5-07-2023

Explanation

The price of one egg is Rs. 5 and in a tray about 30 eggs can be placed.

 the price of 7 trays of eggs will be 1050 RS

30 eggs 30*7=210 eggs 210*5=1050 eggs

ND5-07-2023

Explanation

ND5-07-2023

Explanation

Explanation

To find the average weight of the 11 students, we first need to calculate the sum of their weights and then divide by the total number of students.

Here are the weights of the students:

46 kg, 45.5 kg, 49 kg, 46.5 kg, 50 kg, 47 kg, 48 kg, 47.5 kg, 47.5 kg

Let's find the sum:

46+45.5+49+46.5+50+47+48+47.5+47.5

Summing these:

46+45.5=91.5

91.5+49=140.5

140.5+46.5=187

187+50=237

237+47=284

284+48=332

332+47.5=379.5

379.5+47.5=427

The sum of all weights is 427 kg.

Now, divide this sum by the number of students (11):

Average weight = 427 / 11 ≈ 38.82

It looks like there was a miscalculation. The correct calculation for average weight should be:

Average weight = 427/ 9 = 47.27

So, the correct average weight is 47.27 kg.

ND5-07-2023

Explanation

6/4 + 2.5 = 0

= 1.5 + 2.5

=  4

ND5-07-2023

Explanation

The Non-Aligned Movement (NAM) had its origins in the Bandung Conference of April 1945 In Indonesia, inspired by three world leaders:

Nehru of India,

Tito of Yugoslavia,

and Nasser of Egypt.

**

Establishment: 1961 in Belgrade

Membership:

120 members

27 observers

ND5-07-2023

Explanation

The only number whose square is equal to its cube is 1. 1² = 1. 1³ = 1.

Where the result '1' is a natural number.

ND5-07-2023