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HAPPY BIRTHDAY HOMI JEHANGIR BHABHA  Today we are discussing about the number of Engineer in our country and their employing rate but there was a great Mechanical Engineer of Cambridge Homi Bhabha whose work is too much appreciated till today. He is the father of nuclear energy in India. Yes, I am talking about that nuclear bomb who discuss in India in condition of war situation with Pakistan. He established the  TATA INSTITUTE OF FUNDAMENTAL RESEARCH 1945 and TROMBY ATOMIC ENERGY which is now known as BAHBHA ATOMIC RESEARCH CENTER ( The name was changed by Indara Gandhi in the tribute of Homi Babha on his birth anniversary) He was versatile in nature painter, musician and botanist.  In 1955, he was elected as the president of first international conference on peaceful use of Atomic energy which is organised by United Nation in Geneva. His innovation and work after the Independence of India will never be forget. His life gives us motivation not only for scienti...

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1. The points A ( 1 , -2 ) , B ( 2 , 3 ), C ( k , 2 )and D ( - 4 , - 3 ) are the vertices of a parallelogram. Find the value of k and the altitude of the parallelogram corresponding to the base AB. 2. A manufacturer of TV sets produced 600 units in the 3rd year and 700 units in the 7th year. Assuming that, production increases uniformly by a fixed number of units every year. Find (i) The production in 1 st year. (ii) The production in 10 th year. (iii) The total production in 7 years. 3. The radii of two circles are 19 cm and 9 cm respectively. Find the radius of the circle which has circumference equal to the sum of the circumferences of the two circles. 4. The radii of two circles are 8 cm and 6 cm respectively. Find the radius of the circle having area equal to the sum of the areas of the two circles. 5. The altitude of a right triangle is 7 cm less than its base. If the hypotenuse is 13 cm, find the other two sides.

1. 360 m long train running with uniform speed, and cross the platform in 55 second and cross the man on platform in 24 second find the length of platform (Answer-465m) 2. The ratio of speed of A and B is 3:5 and A Take 24 minutes more than B to cover certain distance. what   time B will get to cover that same distance. (Answer- 36minutes) 3. A certain amount to 29282 in 4 years at 10% per annum when the interest compound annually. What will the interests on same sum same time and same rate but on simple interests. (Answer- 8000) 4. A wire in shape of rectangle whose side is in ratio of 7:4 initially shape in a circle whose radius is 31.5m find the length of smaller side of rectangle. (Answer- 36m) 5. Given four different number, the average of first 3 numbers is four time the fourth number and the average of all four number is 52. Find the average of first three numbers.     (Answer- 64)

Diwali is a festival of light and may god give light in your life and you may achieve all the goal as per as your aim. Read book and try to enhance your knowledge and ability this can enlighten your future that can make your life more brighter and valuable. C elebrate safe Diwali and in any different situation please try to follow the safety measure prescribed by National Disaster Management Authority, Govt of India

1. If the ratio of present age of A and B is 6:5 and 4 year ago the age was in ratio 5:4 find the ratio of age after 12 year. (Answer- 9 : 8) 2. a + b + c = 4 , ab + bc + ca = 1 then find the value of a 3 +b 3 +c 3 (Answer- 52) 3. If Adarsh spend 90% of his income. If its expenditure increase by 25% and saving increase by 30% then how much percent his salary increases.  (25.5%)  4. Abhi sold two articles at 5220rs each. If he get profit of 16% on first article and loss of 10% on other article find total price of profit/loss. (Answer- 140) 5. A and B can work together in 16 day. C and A can complete work 32 day.  B and C complete the work in 24 day. They work together for 12 day. In how many day C complete the rest work alone.

1. Solve the given equation by the method of completing the squares: x 2 + 12x – 45 = 0 2. The sum of first six terms of an A.P. is 42. The ratio of its 10th term to its 30th term is 1:3. Find the first term of the A.P. 3. From the top of a lighthouse 75 m high, the angles of depression of two ships are observed to be  30 o and 45 o respectively. If one ship is directly behind the other on the same side of the lighthouse then find the distance between the two ships. 4. Find the area of the minor segment of a circle of radius 42cm, if the length of the corresponding  arc is 44 cm. 5. A train covers a distance of 90 kms at a uniform speed. It would have taken 30 minutes less if the speed had been 15 km/hr more. Calculate the original duration of the journey