CSS Preparation

Posts

Top 50 Important General Knowledge MCQs

... Q.1 We live on the Earth. According to the scientists, the planet Earth was formed about _____ years ago. (A) 4.6 million (B) 5.6 million (C) 4.6 billion (D) 5.6 billion Correct Answer (C) 4.6 billion Q.2 The “Cocora valley” is the principal location of Quindio wax palm. In which country it is located? (A) Argentina (B) Brazil (C) Colombia (D) Portugal Correct Answer (C) Colombia Q.3 The atmosphere of the Earth is divided into different atmospheric layers based on (A) temperature (B) pressure (C) gasses (D) water vapors Correct Answer (A) temperature Q.4 How many countries are currently members of the United Nations? (A) 190 (B) 191 (C) 192 (D) 193 Correct Answer (D) 193 Q.5 The newest member of the United Nations (joining date 14 July 2011) is (A) Holy See (B) Vatican City (C) South Sudan (D) Palestine Correct Answer (C) South Sudan Q.6 “Chernobyl Power Plant”, currently highlighted in the news, is located in (A) Crimea (B) Ukraine (C) Russia (D) Donbas

Top 50 Important General Knowledge MCQs

A board 7ft. 9 inches long is divided into 3 equal parts. What is the length of each part?

Solution: Length of board = 7 feet 9 inches = ( 7 × 1 2 + 9 ) inches [ ∵ 1 feet = 12 inches ] = 9 3 i n c h e s Number of parts to be cut 3 ∴ Length of each part = ( 9 3/ 3 ) inches = 31 inches = 2feet 7 inches

A's mother is twice as old as A's brother. A is 6 years younger than his brother but 4 years older than his sister. If A's sister is 15, his mother's age is?

Solution: Let m = mother's age Let b = brother's age Let a = A's age Let s = sister's age With four variables we will need 4 equations. From "A’s mother is twice as old as A’s brother" we get: m = 2b ----->(1) From "A is 6 years younger than his brother" we get: a = b - 6-----(2) From "A is ... 4 years older than his sister" we get: a = s + 4-----(3) From "A's sister is 15" we get: s = 15-----(4) Using the last equation we can substitute for s in the 3rd equation: a = (15) + 4 which gives us: a = 19 Using this result and the second equation we can substitute for a: (19) = b - 6 which gives us: 25 = b Using this result and the first equation we can substitute for b: m = 2(25) which gives us m = 50 So the mother is 50 years old.

33 Important MCQs of Islamic Studies

What is the greater of two numbers whose product is 900, if the sum of the two numbers exceeds their difference by 30?

Solution: Let the two numbers be x,y Given: The product of two numbers, xy=900----(1) The sum of two numbers, (x+y)-(x-y)=30 So, x+y-x+y=30 2y=30 y=15 Put y=15 in equation (1), we get:- x(15)=900 x=900/15 x=60 The greater of the two numbers whose product is 900 and sum exceeds difference of 30 is 60.

Look at this series: 8,6,9,23,87... What number should come next? Also explain the hidden story.

Solution: 8,6,9,23,87,? 8×1-2=6 6×2-3=9 9×3-4=23 23×4-5=87 87×5-6=429 The next number is 429. The story behind this series that the number second is multiplied and is also subtracted from the first one and so on. When 87 is multiplied by 5 it is subtracted from the number which will multiply the answer will be 429.

The Nervous System

The great and mighty nervous system or the most of us call it. What makes this organ unique is that within it lies the ability for humans to know oneself. This feature distinguishes and sets the human species apart from rest of creation. This ability is known as consciousness or intelligence. Q: What is the primary function of the nervous function? The basic purpose of the Nervous System is to coordinate all of the activities of the body. It enables the Body to respond and adapt to changes that occur both inside and outside the body. (The nervous system is actually split into two parts) The two major parts to the Nervous System are the Central Nervous System and the Peripheral Nervous System. The Central Nervous System is also divided into two major structures. The Brain and the Spinal Cord. The Brain is found within the skull, or cranium and it is made up of 6 main sections. These six are the Cereb

The average weight of A,B,C is 45 kg. If the average weight of A and B be 40 kg and that of B and C be 43 kg, then the weight of B is?

Solution: Let A, B, C represent their respective weights. Then, we have: A + B + C = (45 x 3) = 135 .... (i) A + B = (40 x 2) = 80 .... (ii) B + C = (43 x 2) = 86 ....(iii) Adding (ii) and (iii), we get: A + 2B + C = 166 .... (iv) Subtracting (i) from (iv), we get : B = 31. B's weight = 31 kg.

If 12 years are added to 2/3 age of Rani, she will be three years older than today. What will be Rani's age after 10 years.

Solution: Let set Rani's age = x and rewrite the question If 12 are added to 2/3 of x, the final result will be x+3 So we have the equation: 12 + 2/3x = x + 3 Now we just solve the equation :D 12 + 2/3x = x + 3 -> multiply 3 to both sides to get rid of the bottom 3 36 + 2x = 3x + 9 27 = x So Rani's present age is 27 years old. But we need Rani's age after 10 years So x+10 27+10 37 37 years will be Rani's after 10 years.

A club had 3 boys and 5 girls. During a membership drive the same number of boys and girls joined the club. How many members does the club have now if the ratio of boys to girls is 3:4?

Solution: New Count of Boys = 3+x New Count of Girls = 5+x Given: 3+x:5+x::3:4 i.e. 15+3x = 12+4x i.e. x = 3 Number of members in club NOW = 3+x+5+x = 8+2x = 8+6 = 14