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20 February 2018 SSC MAINS
[A] 16 [B] 14 [C] 18 [D] 20 185. If a4 + 1 = [a2 / b2](4b2 – b4 - 1), then what is the value of a4 + b4?
मददa4 +1=[a2 /b2](4b2 –b4 -1)तो, a4 +b4का भान क्मा है?
20 February 2018 SSC MAINS
[A] 2 [B] 16 [C] 32 [D] 64 186. If 3√ + 9 = 19 – 3 √ , then what is the value of a?
मदद√ +9=19–3√ तो, a का भान क्मा है?
20 February 2018 SSC MAINS
[A] 3/10, 7/10 [B] 1/10, 9/10 [C] 2/5, 3/5 [D] 1/5, 4/5 187. If a+b = 10 and √ – 13 = -√ – 11, then what is the value of 3ab + 4a2 + 5b2?
मदद a+b = 10 औय √ – 13 = -√ – 11, तो 3ab + 4a2 + 5b2 का भान क्मा है?
20 February 2018 SSC MAINS
[A] 450 [B] 300 [C] 600 [D] 750
188. If 3x + 4y – 2z + 9 = 17, 7x + 2y + 11z + 8 = 23 and 5x + 9y + 6z – 4 = 18, then what is the value of x + y + z – 34?
मदद 3x+4y–2z+9=17,7x+2y+11z+8=23औय 5x+9y+6z–4=18,तो x+y +z–34का भान क्मा है?
20 February 2018 SSC MAINS
[A] –28 [B] –14 [C] –31 [D] –45
189. If x +3y - = 6, x + (2y + 3z) = 33 and (x + y + z) + 2z = 9,then what is the value of 46x + 131y?
मदद x+3y- =6,x+ (2y+3z)=33and (x+y+z)+2z=9,का भान क्मा है? 20 February 2018 SSC MAINS
[A] 414
190. If a = √ √ and b = √ √ ,then what is the value of a2 + b2 – ab?
[B] 364 [C] 384 [D] 464 √√ √√
मदद a=√ √ औयb=√ √ ,तो a2 +b2 –ab का भान ककतना है? √√ √√
21 February 2018 SSC MAINS
[A] 97 [B] (2√3) + 2 [C] (4√6) + 1 [D] 98
191. If the difference between the roots of the equation ax2 – bx + c = 0 is 4,then which of the following is TRUE ?
171