Explanation

abrasive کھرچنے والا

grinding پیسنے

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

amulet تعویز

charm دلکش

Explanation

we could use ‘if he were’, if the events are imagery or improbable.

‘If he were’ can be used when expressing an imaginary situation in the present that is definitely not true.  

In the given question, he behaves like a king, which is an imaginary situation 

So we have used ‘if he were’, instead of using ‘if he was’.

Explanation

'He is poor, yet he is honest'.

Here 'yet' will be used as a conjunction.

Sentence - Though he is poor, he is honest.

Main Clause - He is honest.

Subordinate Clause - Though he is poor.

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

A simple sentence contains a subject and a verb, and it may also have an object and modifiers.

However, it contains only one independent clause.

 'he confessed his crime/guilt' which involves a single subject and predicate yet conveys complete sense is a simple sentence

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

clandestine خفیہ

secret خفیہ

Explanation

Silicon dioxide, also known as silica,

silicon is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz.

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related question:

Which one of the following elements are found common in glass, cement, china clay, and quartz?