• Khalid Bin Waleed (R.A) died in 627 AD.
• Khalid Bin Waleed (R.A) fought more than 50 Battles in his life.
• Khalid bin Waleed is known as 'Sword of Allah. 

•  ***********

  RY 02-01-2023

 The treatment of sewage is part of the field of sanitation.

Sanitation also includes the management of human waste and solid waste as well as drainage management.

if 48 devided by 12 so the 12 will be devided 4 times quotient will be 4

850 masks per day number of blue masks vary 72% remainig masks 28% exclude the remainig percentage of masks from the total number of masks 850 - 28% = 238 masks other than blue colour 850 - 238 = 612 masks blue masks so the total number of blue masks produced per day is 612

One minute: 60 seconds

One hour: 60 minutes

One hour: 3600 seconds

0.5 hour: 1800 seconds

LCM meins Least Common multiple 2/18,24 2/9,12 2/9,6 3/9,3 3/3,1 2x2x2x3x3=72 

Divide 105 by 7 =15

in 2 rows 15+15=30

 If one works from “patterns” alone, this is an easy slip to make, as 2 is the only exception, the only even prime۔.

2 ×  2 = 4

4 ×  2 = 8

8 ×  2 = 16

16 ×  2 = 32