Question

The average height of 70 students in a class is 166 cm. There are 4 students whose height is equal to the average height of 166 cm. If the height of 32 students is greater than 166 cm, then the number of students whose height is less than 166 cm is

• A. 33
• B. 32
• C. 35
• D. 34

Hint:

Split total data into above, equal, and below average categories.

Answer 1

The Correct Option is D

To find the number of students whose height is less than the average height of 166 cm, let's step through the given data logically:

1. The total number of students is 70, and the average height is 166 cm.
2. There are 4 students whose height is exactly 166 cm.
3. It is also given that 32 students have a height greater than 166 cm.

To find the number of students whose height is less than 166 cm, we can use the following steps:

1. Calculate the total number of students who have a height of 166 cm or more:
   • The students with a height greater than 166 cm are 32.
   • The students with a height of exactly 166 cm are 4.
2. Subtract the number of students with height 166 cm or more from the total number of students to find those with height less than 166 cm:

Thus, the number of students whose height is less than 166 cm is 34.