Question

In a class of 92 students, the number of females is one less than twice
the number of males. How many females and how many males are
there in the class?​

Answer 1

Answer:

Let the number of males be a. Then the number of females should be 1 less than 2 times of a.

Number of males = a

Number of females = 2a - 1

Total strength = 92

→ a + 2a - 1 = 92

→ 3a = 92 + 1 = 93

→ a = 93/3 = 31

Therefore,

Number of males = a = 31

Number of females = 2(31)-1 = 62 - 1 = 61

Answer 2

let the female be x -1

and male 2x

x-1+2×=92

2x+× = 92+1

3× = 93

x = 93÷3

× = 31

no . of females =x-1

31 -1 = 30 females

no. of boys = 2x

2 × 31 = 62

VERIFICATION

TOTAL STUDENTS =92

30 +62=92

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