Two trains of lengths 115 and 105 metres are running on parallel lines with the respective rates of 30 and 36 km per hour. The time of crossing each other, if they run in the opposite direction is
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Two trains of lengths 115 and 105 metres are running on parallel lines with the respective rates of 30 and 36 km per hour. The time of cros...
একজন খেলোয়াড়ের ১৬টি খেলার গড় আছে । ১৭তম খেলায় ৮৫ রান করায় তার গড় ৩ বৃদ্ধি পায় । তাহলে ১৭টি খেলার পর তার গড় কত?
একজন খেলোয়াড়ের ১৬টি খেলার গড় আছে । ১৭তম খেলায় ৮৫ রান করায় তার গড় ৩ বৃদ্ধি পায় । ত
Solve this (4x^2 - 2x) - (-5x^2 - 8x)
Solution:
(4x^2 - 2x) - (-5x^2 - 8x)
= 4x^2 - 2x + 5x^2 + 8x.
= 4x^2 + 5x^2 - 2x + 8x
৪৮ মি. দীর্ঘ এবং দৈর্ঘ্য প্রস্থের তিনগুণ বিশিষ্ট আয়তক্ষেত্রের সমান পরিসীমা বিশিষ্ট বর্গক্ষেত্রের ক্ষেত্রফল নির্ণয় কর ।
The area of a square which has the same perimeter as a rectangle, whose length is 48 m a
A dealer buys oranges of two qualities one at Rs. 12 a dozen and the other at Rs. 8 a dozen. These were mixed up and he sells them at 15 per Rs. 12 and thereby makes 5% on his total outlay.
A
dealer buys oranges of two qualities one at Rs. 12 a dozen and the other at Rs.
8 a do
In an examination, 80% of the candidates passed in English, 85% passed in Mathematics, while 75% passed in both English and Mathematics. If 45 candidates failed in both subjects, the total number of candidates is (a) 450 (b) 420 (c) 400 (d) 460
In
an examination, 80% of the candidates passed in English, 85% passed in
Mathematics, w
An article which costs Rs. 360 is sold at a loss of 15%. Its selling price is (a) Rs. 306 (b) Rs. 300 (c) Rs. 280 (d) Rs. 250
An article which costs Rs. 360 is sold at a loss of 15%.
Its selling price is
(
