Question
The average of 22 numbers is 90. The average of the
first 14 numbers is 95, while the average of the last 10 numbers is 85. If the 14th number is removed, what will be the average of the remaining 21 numbers, rounded to one decimal place?Solution
ATQ, Sum of 22 numbers = 90 × 22 ⇒ 1980 Sum of first 14 numbers = 95 × 14 ⇒ 1330 Sum of last 10 numbers = 10 × 85 ⇒ 850 Let the 14th number be x Sum of 22 numbers = Sum of first 14 numbers + Sum of last 10 numbers - 14th number ⇒ 1980 = 1330 + 850 - x ⇒ 1980 = 2180 - x ⇒ x = 2180 - 1980 ⇒ x = 200 Sum of remaining numbers = 1980 - 200 ⇒ 1780 Remaining numbers = 21 Average of remaining numbers = 1780 / 21 ⇒ 84.8 ∴ The average of the remaining numbers (correct to one decimal place) is 84.8
Cocconut contains how much percentage of oil?
The crop growing season in dry land farming ranges from ____to___
The yearly sequence and spatial arrangement of crops or of crops and fallow on a given area is known asÂ
An irrigation project is called major irrigation project when CCA is
Agriculture and Agronomy are derived from
 The United Nations General Assembly (UNGA) has declared 2023 as the International Year of Millets (IYM). The leading country in millet production is
Molybednosis in cattle is caused when concentration of Molybednum in fodder is
Excellent source of nitrogen in groundnut is
Japanese style of floral arrangement is termed as
Some weeds seeds have similar shape, size and sometimes weight as that of crop seeds, these types of weeds are called_____Â
Relevant for Exams:
