121.

If x² - 3x + 1 = 0,  then the value of  is

• 2

• 6

• 8

• 10

If  then the value of  is

• 3

• 4

• 6

• 9

Find the simplest value of  (given ).

• 9.898

• 10.312

• 8.484

• 4.242

If a² + b² + 4c² = 2(a + b - 2c) - 3 and a, b, c are real, then the value of (a² + b² + c²) is

• 

• 2

• 

• 3

A number x, when divided by 289 leaves 18 as the remainder. The same number when divided by 17 leaves y as a remainder. The value of y is

• 2

• 3

• 1

• 5

An equation of the form ax + by + c = 0, where,  represents a straight line which passes through

• (2, 4)

• (0, 0)

• (3, 2)

• None of these

The numerator of a fraction is 4 less than its denominator. If the numerator is decreased by 2 and the denominator is increased by 1, then the denominator becomes eight times the numerator. Find the fraction.

If x² = y + z,  y² = z + x  and z² = x + y, then the value of 
    is

• 1

• 2

• 0

• -1

In a Δ ABC, ∠A = 90°, ∠C = 55°, What is the value of ∠BAD ?

• 60°

• 45°

• 55°

• 35°

If G is the centroid of Δ ABC and Δ ABC = 48 cm²,  then the area of Δ BGC is

• 8 cm²

• 16 cm²

• 24 cm²

• 32 cm²