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Quadratic Equation, Class – 10

Type – 01 Short Answer Type Questions : 1 ) Which of the following polynomial is a quadratic polynomial . ( i ) x2 – 7x + 2 ( ii ) 7×5 – x ( x + 2 ) ( iii ) 2x ( x + 5 ) + 1 Read more…

By Farhat Jahan, 2 weeks4 days ago

The length, breadth and height of a cuboid of a room be a unit, b unit and c unit respectively and a + b + c = 25, ab + bc + bc = 240.5 then find the length of the longest rod to be kept inside the room. ( WBBSE – 2019 )

The length, breadth and height of a cuboid room be a unit, b unit and c unit respectively and a + b + c = 25, ab + bc + bc = 240.5 then find the length of the longest rod to be kept inside the room. Solution : The Read more…

By Farhat Jahan, 4 weeks4 weeks ago

Class 10 Maths Tutorials

If sin 10θ = cos8θ and 10θ is a positive acute angle, then find the value of tan9θ. ( WBBSE – 2019 )

If sin 10θ = cos8θ and 10θ is a positive acute angle, then find the value of tan9θ. Solution : sin 10θ = cos8θ [ ∵ sin ( 90 – θ ) = cos = θ ] ⇒ sin 10θ = sin ( 90 – 8θ ) ⇒ 10θ = Read more…

By Farhat Jahan, 4 weeks4 weeks ago

Class 10 Maths Tutorials

Find the values of (0° ≤ θ ≤ 90° ) for which 2 sinθ cosθ = cosθ. ( WBBSE – 2019 )

Find the values of (0° ≤ θ ≤ 90° ) for which 2 sinθ cosθ = cosθ. Solution : 2 sinθ cosθ = cosθ ⇒ 2 sinθ cosθ – cosθ = 0 ⇒ cosθ ( 2 sinθ – 1 ) = 0Either cosθ = 0 ⇒ cosθ = cos90° ( Read more…

By Farhat Jahan, 4 weeks4 weeks ago

Class 10 Maths Tutorials

x ∝ y2 and y = 2a when x = a, then show that y2 = 4ax . ( WBBSE – 2019 )

x ∝ y2and y = 2a when x = a, then show that y2 = 4ax . Solution : x ∝ y2 ⇒ x = ky2 ——————-( 1 ) where k is variation constant . when x = a and y 2a, then from equation ( 1 ), a = Read more…

By Farhat Jahan, 1 month1 month ago

Class 10 Maths Tutorials

In a partnership business the ratio of capitals of three men is 3 : 5 : 8 . The share of profit of the first member is Rs. 60 less then that of the third member, then what is the total profit in the business ? ( WBBSE – 2019 )

In a partnership business the ratio of capitals of three men is 3 : 5 : 8 . The share of profit of the first member is Rs. 60 less then that of the third member, then what is the total profit in the business ? solution : ∵ Capital Read more…

By Farhat Jahan, 1 month1 month ago

Class 10 Maths Tutorials

Find the capital which gives Rs. 1 as interest per month at 5 % rate of interest per annum.

Question : Find the capital which gives ₹ 1 as interest per month at 5 % rate of interest per annum. solution : Interest ( I ) = ₹ 1 Time ( T ) = 1 month = 1 / 12 years Rate ( R ) = 5 % Principal Read more…

By Farhat Jahan, 1 month1 month ago

Class 10 Maths Tutorials

The difference between the simple interest the compound interest of Rs.100 in 1 year at the rate of 10% p.a is Rs.1.

The different between the simple interest the compound interest of ₹100 in 1 year at the rate of 10% p.a is Rs.1. Answer : False Explanation : Principle (P) = ₹ 100 Rate of interest (R) = 10% Time (T) = 1 year Simple interest ( S.I ) = PRT/100 Read more…

By Farhat Jahan, 1 month1 month ago

Class 10 Maths Tutorials

The compound ratio of ab :c2, bc : a2 and ca : b2 is 1:1.

The compound ratio of ab :c2, bc : a2 and ca : b2 is 1:1. Answer : True Explanation : The given ratios are ab :c2 bc : a2 ca : b2 Compound Ratio of the given ratios = ( ab × bc × ca ) : ( c2 × Read more…

By Farhat Jahan, 1 month1 month ago

Class 10 Maths Tutorials

A person deposited Rs. 100 in a bank and gets the amount Rs. 121 after two years . The rate of the compound interest is _______ % . ( WBBSE – 2019 )

A person deposited ₹ 100 in a bank and gets the amount ₹ 121 after two years . The rate of the compound interest is ______% . Answer : 10% Explatation : Principal (P) = ₹ 100 Amount (A) = ₹ 121 Time (T) = ?? According to problem, A = P Read more…

By Farhat Jahan, 1 month1 month ago

Class 10 Maths Tutorials

Class 10 Mathematics – By covering all chapters Mindshut is here with the best Class 10 Maths tutorials including explanations, videos, question and answers based on NCERT, WB Board, Bihar Board and other major boards in India. Browse chapters and learn class 10 Mathematics online now !

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Class 10 Mathematics – By covering all chapters Mindshut is here with the best Class 10 Maths tutorials including explanations, videos, question and answers based on NCERT, WB Board, Bihar Board and other major boards in India.

Browse chapters and learn class 10 Mathematics online now !