Simplification Questions

• 23x12+49x15312+50 = ?
• The sum of two numbers is 7 and the sum their squares is 23, their product is equal to:
• Find the value of n+3n2+9n4+......∞
• Rs.7750 is divided among X, Y and Z such that 3 times of X's share is equal to 5 times of Y's share which is equal to 2 times of Z's share. What is the share (in Rs) of Z?
• In each question two equations numbered I and II are given,you haveto solve both the equation and choose the correctanswer. I. 5x2+ 28x = -15II. 3y2+ 11y + 6 = 0
• In the following questions two equations numbered I and II are given. You have to solve boththe equations and give answers I. 2x ² –21x + 54 = 0 II. y ² –14y + 49 = 0
• What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)? √580×∛510+ 49.999 x 3.999=?
• What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)?(55.01+16.0003)×22.01÷10.998 =?
• What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)? 499.99 + 1999 ÷ 39.99 × 50.01=?
• The value of -261+(-380)-(-521)+821-(-121)
• Solve the following : -1/4 { -45 - (-96) / (-32)} = ?
• If 3x^2 + ax + 4 is perectly divisible by x - 5, then the value of a is :
• Solve the following : 80÷[48−56−(60−36÷12×4)]=?
• Solve the following : 3/4+{3/4 + 3/4 ÷ (3/4 + 3/4)} = ?
• Solve the following: (−18)[36÷7−(−2)]÷{}(−4)19−(−3)×(−5)={}?
• If the value of √42 is approximately 6.480, then what is the approximate value of √(6/7)?
• If Sin x = 4/5, then Cosec x + Cot x =
• What is the value of 0.55 x 4.5/0.81 ?
• What is the value of [12/(√5 + √3)] + [18/(√5 – √3)]?
• If the value of 3-1.732 , then calculate the value of 243-12108-147