AKU MBBS MCQs

Systematic errors often arise from calibration or method bias.
Repeated measurements do not automatically remove them.

Random errors cause scatter around a central value.
Repeated measurements and averaging can reduce their effect.

Leading zeros are not significant, but trailing zeros after a decimal are.
Thus 4, 5, and the final zero are significant.

The digit 7 is in the thousands place.
Therefore, its place value is 7 × 1,000 = 7,000.

A prime number has exactly two positive factors: 1 and itself.
The number 29 is not divisible by 2, 3, or 5.

The common factors of 36 and 48 include 1, 2, 3, 4, 6, and 12.
The greatest of these is 12.

Multiples of 8 are 8, 16, 24, and so on.
The first multiple also divisible by 12 is 24.

A number is divisible by 9 when the sum of its digits is divisible by 9.
For 5,832, the digit sum is 18.

Since 12 × 13 = 156, subtracting gives 157 - 156 = 1.
Thus, the remainder is 1.

Division and multiplication have equal priority and are performed left to right.
So 48 ÷ 6 = 8, and 8 × 3 = 24.

Multiplication is performed before addition.
Thus, 3 × 4 = 12 and 5 + 12 = 17.

Matter includes solids, liquids, gases, and plasma.
It is composed of atoms, molecules, or ions.