The arithmetic mean of 13 numbers is
77, Find their sum.
A) 901
B) 1001
C) 1171
D) 1301
Explanation: To find the sum of the 13 numbers, we can multiply the mean (77) by the total count of numbers (13). This is because the mean is calculated by dividing the sum of all the numbers by the count.
Sum = Mean * Count = 77 * 13 = 1001
Therefore, the sum of the 13 numbers is 1001.
"دستک" مرزا ادیب کا شاہکار ــــــــــــــــــ ہے۔
A) افسانہ
B) ڈرامہ
C) ناول
D) داستان
The colour of Tin and Nickol are light.
A) Brown
B) Blue
C) Pink
D) Yellow
When seed germinates, its…….forms roots.
A) Testa
B) Plumule
C) Embryo
D) Radical
Which one of the following is not a primary pollutant?
A) CO
B) SO2
C) SO3
D) NO2
Explanation: Sulphur dioxide is a primary pollutant but sulphur trioxide (SO3) is a secondary pollutant that causes acid rain.
